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Old 04-02-2012, 09:34 PM   #26
Magnum
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How many miles on new motor?
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Old 04-02-2012, 09:47 PM   #27
flatfourspeed
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hey i had an issue where my car would drive fine without much of a load on the motor and when i would load it at all it would miss and backfire. My issue was the timing belt tensioner was bad allowing it to jump timing under a load.

Your best bet is to check timing/ timing belt tensioner, check your spark plug gap and condition, check you coils, after that i would check fuel system if nothing in your timing or ignition system is wrong.
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Old 04-02-2012, 09:58 PM   #28
txjunglist
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Quote:
Originally Posted by Spider Pig View Post
He'd need the 1300cc ones for E85 if he was running a bigger turbo, but not for a TD04. My 850cc injectors are good for E85 and my 20g.
i forgot to save a edit from a hr ago . but yeah he has 30r plans 1300cc would be good for that .


im just not sure the stock ecu can drive an injector that size properly. Ive been searching on the net for max injector for stock ecu. no good results
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Old 04-02-2012, 10:12 PM   #29
iconone
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Here is the learning view.
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Old 04-02-2012, 10:24 PM   #30
iconone
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Here is another lv. When driving and looking at romraider I noticed his iam was at 8. Im a super noob at this but isn't it need be at 16?
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Old 04-02-2012, 11:19 PM   #31
Spider Pig
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Quote:
Originally Posted by txjunglist View Post
i forgot to save a edit from a hr ago . but yeah he has 30r plans 1300cc would be good for that .


im just not sure the stock ecu can drive an injector that size properly. Ive been searching on the net for max injector for stock ecu. no good results
Ah, well that makes sense then.

In regards to the Deastchwerks 1300s, I've heard and seen very high failure rates for those injectors. Not for any other sizes, which is strange.
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Old 04-03-2012, 12:38 AM   #32
grimlin
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Yes it should be 16, but if something is wrong, say bad injectors or knock sensor problems, then yeah it would be down.
As far as running the DW1300cc injectors. We have seen a lot of issues with the injectors out of the box. But once they get sent back to DW and get rebuilt they seem to run fine. And yes, the stock ECU can run these just fine. Jeremy has the same injectors in his DD 550hp 04 STi. (as do many others)
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Old 04-03-2012, 12:45 AM   #33
Daniel's05WRX
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Quote:
Originally Posted by grimlin
Yes it should be 16, but if something is wrong, say bad injectors or knock sensor problems, then yeah it would be down.
As far as running the DW1300cc injectors. We have seen a lot of issues with the injectors out of the box. But once they get sent back to DW and get rebuilt they seem to run fine. And yes, the stock ECU can run these just fine. Jeremy has the same injectors in his DD 550hp 04 STi. (as do many others)
Vince aka iconone should be sending Keith the data log from tonight
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Old 04-03-2012, 09:39 AM   #34
Daniel's05WRX
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Learning views are up any thoughts
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Old 04-03-2012, 09:57 AM   #35
Nathan Explosion
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Your car is pulling a ton of fuel at low load. Were you tuned for these injectors? Looks like injector scaling may be off and your IAM and AF learning are struggling to compensate.
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Old 04-03-2012, 09:58 AM   #36
Daniel's05WRX
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Quote:
Originally Posted by Nathan Explosion
Your car is pulling a ton of fuel at low load. Were you tuned for these injectors? Looks like injector scaling may be off and your IAM and AF learning are struggling to compensate.
Yes I'm tuned for these injectors Keith tuned my car for them set up for a break in
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Old 04-03-2012, 10:06 AM   #37
Nathan Explosion
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Quote:
Originally Posted by Daniel's05WRX

Yes I'm tuned for these injectors Keith tuned my car for them set up for a break in
Send him a copy of your logs and learning views. Your fueling is way off from the LV. The ecu has pulled 15% at low load and added everywhere else. Could be a stuck injector or a number of other things.
Also get those codes cleared.
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Old 04-03-2012, 10:10 AM   #38
Daniel's05WRX
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Quote:
Originally Posted by Nathan Explosion

Send him a copy of your logs and learning views. Your fueling is way off from the LV. The ecu has pulled 15% at low load and added everywhere else. Could be a stuck injector or a number of other things.
Also get those codes cleared.
Already sent it over... They are thinking its an injector malfunction because every set of these DW 1300's they've come across have been problematic. But we will see what he says today from logs and LV
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Old 04-03-2012, 01:41 PM   #39
bmssubietech
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most likely you have adjustments that need to be made with valve lash cups. start there. if they are close to specs but just a little to tight, it can cause that concern. yes the injector and fuel pump is a little too much for that turbo setup but keith at awdtuning is a damn good tuner! i would almost bet that the valve lash adjustment is out because you cannot adjust valve lash until the heads and motor are torqued together and only then you can get good accurate adjustments!!! i have seen this problem many times due to machine shops doing the adjustments before the shop gets everything back and put together and assume that since the machine shop did it that they don't have too!
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Old 04-03-2012, 01:58 PM   #40
shawns_sick_STi
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First post you said STi cams. Did you compensate for the 10* the stock STi cams are retarded? stock STi cams DON'T work with 2.0 non AVCS heads! At least with out adjustable cam gears! (which cost as much as staged cams). My friends hybrid motor with STi cams ran fine until rpms got high and you started getting in too boost. Then with the valve over lap from the incorrect valve timing, it started falling off hard and running like crap. This could be your problem if you just plugged the oil holes in the cams and put them in your 2.0 heads and went with it.
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Old 04-03-2012, 04:58 PM   #41
Daniel's05WRX
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Quote:
Originally Posted by shawns_sick_STi
First post you said STi cams. Did you compensate for the 10* the stock STi cams are retarded? stock STi cams DON'T work with 2.0 non AVCS heads! At least with out adjustable cam gears! (which cost as much as staged cams). My friends hybrid motor with STi cams ran fine until rpms got high and you started getting in too boost. Then with the valve over lap from the incorrect valve timing, it started falling off hard and running like crap. This could be your problem if you just plugged the oil holes in the cams and put them in your 2.0 heads and went with it.
I'm like 99% sure you are incorrect here... There are people all over the web who put USDM Sti cams in USDM wrx heads and have no issues
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Old 04-03-2012, 05:09 PM   #42
seanathanq83
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I looked at the learning views and your fueling is pretty crappy its everywhere from pulling 8 to adding 14.99+ it shows either your have air leaks somewhere or scalar and latency are quite a bit off and by driving it this was your just going to play it up. Its apparent the ecu is doing all it can to try to say the engine heck its pulling the iam down to 8. Stop driving it especially hard until you get it fixed.
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Old 04-03-2012, 05:46 PM   #43
shawns_sick_STi
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Quote:
Originally Posted by Daniel's05WRX

I'm like 99% sure you are incorrect here... There are people all over the web who put USDM Sti cams in USDM wrx heads and have no issues
We read all about it working for people online. Just putting what I experienced out there. They didn't work for our build, even when we told our tuner what we where doing they said it won't work, but good luck. We plugged the AVCS oil ports in the cams, bolted them in, and they just didn't work.
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Old 04-03-2012, 09:42 PM   #44
Daniel's05WRX
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ok so replaced the turbo inlet, pcv valve assembly and double checked the vacuum system... car still runs horrible... runs worse with the exhaust that i put on last night after the LV and data log... car runs way better with open down pipe... i officially hate my ****ing car
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Old 04-04-2012, 09:04 AM   #45
seanathanq83
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Quote:
Originally Posted by Daniel's05WRX
ok so replaced the turbo inlet, pcv valve assembly and double checked the vacuum system... car still runs horrible... runs worse with the exhaust that i put on last night after the LV and data log... car runs way better with open down pipe... i officially hate my ****ing car
Hey text me and did you buy the dw1300 new
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Old 04-05-2012, 02:20 PM   #46
Daniel's05WRX
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Checked compression today and in at 150 @ all cylinders... Leak down test to come
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Old 04-05-2012, 09:52 PM   #47
Daniel's05WRX
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Car failed leak down test getting 40% leak @ 60psi on all cylinders gonna have to pull the heads and reset the valves
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