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Old 08-15-2004, 12:37 AM   #251
shoeler25
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does anyone find that reflashing helps avoid a cel after installing headers...i have some borlas out being coated, that will mate up with a borla cat back. just wondering if reflashing before the car runs with the new header if it will be less likely to trigger the light. thanks in advance

-Brian
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Old 08-20-2004, 10:39 PM   #252
ejprojects
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Default if i didn't owe five grand on this outback, i'd shoot it...

this has been going on for two years.
if i don't let my '96 outback warm up,
it will stall above 45 mph. (lose power and die with the cel flashing). i have
taken it directly to the dealer three times.
they had me replace the crank position sensor, o2 sensor, and some vacuum dealie on top of the engine. none of that worked. when i say warm up, i mean year-round, even when its 80 degrees
out. most of the time the error code is "engine misfire". well, i know the engine is misfiring...it sputters and dies! so the $70 bucks the dealer charges for the
diagnostic isn't helping anything. also, if i don't start it immediatly after turning it off, i have to wait an hour before it will start again. if i baby it and jump thru all these hoops, the cel goes off after two days. in summary, it will stall if not warm, but won't start unless its cold. it's not the gas cap.
i've read in this forum that a "flashing" cel means a realtime misfire....and misfires are not good for the cat...
could a bad cat be, in turn, killing the motor? (without a
cat error code). or how about this....a bad battery that overworks the alt. and...?? i'm gonna try a new battery, fuel filter, air filter, catalytic converter, (i already installed top-end plugs, wires). then i'm going to file bankruptcy.
also, when it stalls, what is the easiest way to clear the
error code without resetting all that the computer has learned? (that's important, right?) for the purpose of getting my stalled car off of the busy rush-hour beltline.
can you imagine having to let your car warm up every time for two years??? i am sick! please help. thank you. eric

Last edited by ejprojects; 08-20-2004 at 10:57 PM. Reason: adding text
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Old 08-25-2004, 02:08 AM   #253
WR-Xtasy
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Default Some wierd cel codes

Hi All

Been a while since I was here

Well I have a 2002 WRX
87,000 miles
0ver 20,000 of that is with a Vishnu Stage zero (original version - w/ Piggy back)
EBC set a little consertively ~13 PSI
Oil catch can

I have been getting the usual codes that came with the first version of the Vishnu with the piggy back computer but I have recently gotten these 3 wierd ones

here are the codes
Pe100
P2500
P2300
All three show up on my AutoEnginuity as Manufacture Specific / Unknown or illegal

I have not seen these before and they all have shown up in the last 1.5 weeks

Thank you for any help

WR-Xtasy
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Old 08-29-2004, 01:58 PM   #254
Charlie-III
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ejprojects Have you swapped the coil packs out? You may have a bad one.
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Old 08-29-2004, 10:06 PM   #255
ejprojects
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Default cel issue

i haven't tried the "coil packs", but i did replace the battery and it seems to have worked somewhat, but i can't tell yet.... i am so used to warming the car up, that i still do it, and i am so afraid of it dying on the highway. on the way home from work the other day, it seemed to lose power again (like it was going to die), but it didn't and the cel didn't blink like it always used to. this is interesting....there must not be an error code for a weak battery/overworked alternator. i may have solved "part" of the problem by replacing the battery. i never suspected the battery because it always turned over.
(unless it died and then i would crank the !@#$%^&* out of it!) ...then i would need a jump, but sometimes wouldn't start even then. i may try driving it tonight without "warming it up" to see what happens. thanx for your input. eric
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Old 09-04-2004, 02:48 AM   #256
ccroach
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Flew in from las vegas to LA to pick up my 99rs. On the drive home (300 miles) the CEL came on. car is stock. Im sad, i will get codes pulled at autozone tomorrow and post results. gotta love subaru CEL's

BTW, would driving the car to a 2500ft elevation difference make my RS throw a CEL?

thanks for the help fellas...

Last edited by ccroach; 09-04-2004 at 04:30 AM.
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Old 09-04-2004, 03:29 AM   #257
yuwrx
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Post check engine light, need help!

My mods are as follow:
turbo-back, uppipe, intake, E01, e-manage, FMIC and mods that doesn't do much powerwise.

the check engine light codes that I got were
P0172, P0301 and P0303

I have tried many different CEL fix but still don't work. I am guessing it's the spark plugs because I had a set of NGK iranium plugs installed 2 weeks ago

please help!!

thank you
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Old 09-07-2004, 11:20 AM   #258
soobyfan
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matchstick red

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in response to the cat efficiency codes and problems with the borla gen 4 headers ect


i have had a CE light since i installed my borla and high flow cat, would it be smarter (better for my engine) to wrap the headers or to get a mil eliminator

would it be smart to get the codes checked first even though im dead sure what it is

if i reset the ecu to kills the CE light it will stay off for about 50 miles and then comes back on - i do not have a name brand high flow cat-conv. and it has broken apart on me once before so i dont know if that is the problem or not.....the header needs wrapped? so it ruins the cat?


can anyone help?


-----also when you wrap the headers is there any specific kind of wrap to buy and how many times do you wrap it?

Last edited by soobyfan; 09-07-2004 at 11:27 AM.
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Old 09-10-2004, 01:30 AM   #259
Kushmasterh
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Platinum Silver

Subaru Stars CEL light with flashing Cruise?

Hello all,
I was wondering if anybody Has had a problem like mine? I have a 2004 GDB STi with about 5,000 miles on it, daily driven hard. The other day I had the car at my local track and I hit about 100-110 and the car just stop delivering power and felt like it died for a sec. Then the CEL came on with the cruise light flashing also. I have done all my mods myself such as APS cold air, Helix 3" downpipe with 3" cat-back exhaust(with splice in CEL kill module to rear o2 sensor), HKS SSQV blow-off. I reset the ECU once by removal of the neg. battery cable for a couple min. and then everythings fine until I run it hard again and hit the same rate of speed an it happens all over again! I've been told that it might be boost-creep but am not sure, the boost gague dose not spike at the time it happens, so i'm pretty stumped. Going to take it to AutoZone to have the codes read tomarrow, but was wondering if anybody had any ideas. Thanks!
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Old 09-18-2004, 01:35 PM   #260
newin96
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1996 Legacy LS
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ejprojects,
My 96 Legacy (no mods) has been having the blinking CEL (hesitation, loss of power) situation about every two weeks for some time now. Per the dealer the code is misfire cylinder #2. After new plugs, wires, sealing for moisture etc... ($800 investment), the CEL still occurs every two weeks. The dealer is stumped! They have driven my subby for weeks to try and decipher whats up with no further luck. I have been able to induce the CEL to occur by driving at 80mph and then coasting down to 60 and flooring it (it really doesn't like this). As my dealer is no hope, let me know what you have found.
Thanks!
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Old 09-23-2004, 11:38 AM   #261
Markyboy uk
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Default P0303 Misfire

I've just had CEL P0303 15 minutes after fitting a 7 wire grounding kit. Car was perfectly ok before this. Dealer advised me that I may have a faulty spark plug - these are due a change anyway so will try this first and post back results.

Just cant help but wonder if, due to better grounding, one of the sensors is now operating more efficiently and is showing up a fault that would otherwise not have thrown a CEL

Mark

Last edited by Markyboy uk; 09-24-2004 at 05:32 AM.
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Old 09-24-2004, 01:54 AM   #262
shoeler25
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scoobyfan...dont do wrap, use jethot or some other coating...i used swaintech in scottsville ny. cheap, looks good and works. in NY you cant buy wrap anymore.
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Old 09-24-2004, 08:22 PM   #263
soobyfan
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matchstick red

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did you get this done somewhere or can you buy it in a can?
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Old 09-29-2004, 01:38 AM   #264
shoeler25
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soobyfan
i took it right to the place, its an in house job. took em a couple weeks, the guy said it usually only takes about a week but they got a large order the day before i took it to them. you can ship it to them, and such. anything you can buy in a can like brake paint or engine paint isnt really the same, thats mostly cosmetic. this stuff is a pretty thick external ceramic coat. look up swaintech on google or jethot too, cost me 140 to have it done. no shipping since it was local, i think youd be gettin a great service either way, so just go with whats cheaper to you.
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Old 09-30-2004, 06:25 AM   #265
donut
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Default

i have a 98 rs with 92k miles on it. i have a cold air intake and i have the hood vent open and it had been raining for a few days when i got CEL . stop @ autozone and and got a P0103 maf curcit current high input. i think it got a little wet with all the rain . i'm going to clean out the plug with so nice cleaning solvent and i hope it dosen't come back.
later Matt
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Old 10-03-2004, 08:53 AM   #266
drc
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2001 RS pretty much stock.
two codes
P0325 - malfunction in knock sensor 1
P0133 - response time for O2 sensor in bank 1 was too slow during testing
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Old 10-03-2004, 05:47 PM   #267
RyansJDMgc8
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01' 2.5RS
Silver/Carbon Fiber

Impreza GC8

Quote:
Originally Posted by drc
2001 RS pretty much stock.
two codes
P0325 - malfunction in knock sensor 1
P0133 - response time for O2 sensor in bank 1 was too slow during testing
I had the same 2 codes. I bought a new o2 sensor on ebay for $40. And I retightened the knock sensor (17ft lbs.) And both codes went away. Hope this helps.
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Old 10-09-2004, 06:50 PM   #268
skoobysnacks
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2004 STi
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Smile Has this happened to you?

I was headed back home, I had been following a friend in his 04 WRX in my 04 STi because I was unsure of the way back. Then at 80mph to pass the Semi-Truck first, well I got there first and then my car shut off . From what I think happened is the engine cut off of fuel starvation. So I pop it back in gear and it started back up, BUT now with a CHECK ENGINE LIGHT and my dam CRUSIE CONTROL light was FLASHING now! So now I am like ***! I get home and turn off and start it back up and still there flashing at me! So I start searching NASIOC, and then I found this thread, and a few min. later and no more lights!!! I had found if you disconnect the Negative terminal off the Battery it will reset the ECU and dam did it work.

Thanks,
-Jay

Last edited by skoobysnacks; 10-11-2004 at 02:18 AM.
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Old 10-09-2004, 08:41 PM   #269
Subaruski
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Lame....
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Old 10-10-2004, 04:20 AM   #270
drc
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Quote:
Originally Posted by RyansJDMgc8
I had the same 2 codes. I bought a new o2 sensor on ebay for $40. And I retightened the knock sensor (17ft lbs.) And both codes went away. Hope this helps.
thanks, I'll give it a try this week.
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Old 10-13-2004, 05:21 AM   #271
Markyboy uk
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Default

Quote:
Originally Posted by Markyboy uk
I've just had CEL P0303 15 minutes after fitting a 7 wire grounding kit. Car was perfectly ok before this. Dealer advised me that I may have a faulty spark plug - these are due a change anyway so will try this first and post back results.

Just cant help but wonder if, due to better grounding, one of the sensors is now operating more efficiently and is showing up a fault that would otherwise not have thrown a CEL

Mark
Update:
Changing spark plugs has cured CEL P0303. - No more CEL's
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Old 10-16-2004, 12:02 PM   #272
Kushmasterh
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2004 WRX STi
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Quote:
Originally Posted by skoobysnacks
I was headed back home, I had been following a friend in his 04 WRX in my 04 STi because I was unsure of the way back. Then at 80mph to pass the Semi-Truck first, well I got there first and then my car shut off . From what I think happened is the engine cut off of fuel starvation. So I pop it back in gear and it started back up, BUT now with a CHECK ENGINE LIGHT and my dam CRUSIE CONTROL light was FLASHING now! So now I am like ***! I get home and turn off and start it back up and still there flashing at me! So I start searching NASIOC, and then I found this thread, and a few min. later and no more lights!!! I had found if you disconnect the Negative terminal off the Battery it will reset the ECU and dam did it work.

Thanks,
-Jay

That is only a temporary fix to stop your CEL light and Cruise from being on. The lights will just come back on again the next time you lay into it again. Next time it happens you have to go to Autozone and they can read your codes for free. But the lights must be on. Also when they read the codes look on the reader to see what they mean, and wright them down. Is your car stock?
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Old 10-16-2004, 12:17 PM   #273
skoobysnacks
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Blue

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Quote:
Originally Posted by Kushmasterh
That is only a temporary fix to stop your CEL light and Cruise from being on. The lights will just come back on again the next time you lay into it again. Next time it happens you have to go to Autozone and they can read your codes for free. But the lights must be on. Also when they read the codes look on the reader to see what they mean, and wright them down. Is your car stock?
No, I have a full race (cat-less) exhaust with a CEL eliminator bung. I also have a HKS ssq BOV and a Unifilter Intake.
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Old 10-16-2004, 12:46 PM   #274
Kushmasterh
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Platinum Silver

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Quote:
Originally Posted by skoobysnacks
No, I have a full race (cat-less) exhaust with a CEL eliminator bung. I also have a HKS ssq BOV and a Unifilter Intake.
Well with a full cat-less exhaust and stock IHI Turbo you might be experiencing boost-creep from the Aftermarket catless exhaust. With the exhaust on, the wastegate controller can not compensate for the exhaust pressure that is being forced through the stock turbo port. The solution to this is either having the turbo housing port and polished or you can do it yourself if you have some experince w/ your car. Search NASIOC for this topic and there is so detailed info on how to do it if interested. I am also in the process of installing a TurboXs MBC to try to compensate and up the psi from stock 7psi to about 13-14psi before I port the houseing and alter the stock Turbo, This also might help the wastegate controller out a bit and hopefully stop the CEL and fuel cut. That is one of the flaws with our stock turbo. Hope this helps!
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Old 10-16-2004, 01:03 PM   #275
skoobysnacks
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Location: Okinawa
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2004 STi
Blue

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Quote:
Originally Posted by Kushmasterh
Well with a full cat-less exhaust and stock IHI Turbo you might be experiencing boost-creep from the Aftermarket catless exhaust. With the exhaust on, the wastegate controller can not compensate for the exhaust pressure that is being forced through the stock turbo port. The solution to this is either having the turbo housing port and polished or you can do it yourself if you have some experince w/ your car. Search NASIOC for this topic and there is so detailed info on how to do it if interested. I am also in the process of installing a TurboXs MBC to try to compensate and up the psi from stock 7psi to about 13-14psi before I port the houseing and alter the stock Turbo, This also might help the wastegate controller out a bit and hopefully stop the CEL and fuel cut. That is one of the flaws with our stock turbo. Hope this helps!
Thanks, I'll try it. I am a little confused though isn't the stock boost on a STi 14.5psi not 7psi? Hit me back and let me know if u like it and what PSI works the best for you, without putting the engine at harm. What other mods have you done so far?
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