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Old 07-25-2012, 02:09 AM   #1
Jirv311
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Default [SOLVED]New hybrid build. First start Cyl 1 & 3 misfire. [Video]

I'm posting this here as I just finished my hybrid build and got it started for the first time. Started slow and has a very rough idle. You can definitely tell something isn't firing but I can't tell if it's 1 or 2 cylinders. I get the obvious cylinder 1 & 3 flashing CEL. I'll be doing a compression test tomorrow evening after work (too late for that now) and will see what it comes out like.

A little info:

02 WRX
EJ257 block
EJ205 heads
Eagle rods
Manley pistons
ARPs
New valve seals
Had valves adjusted at dealer recently. Checked cam timing afterwards and it was still spot on.
06 WRX dark blue injectors


I know I've given you little to no info but just wondering if anybody has had this and if it should be glaringly obvious. I've attached a video and will update this post once I dig in a bit more.

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Last edited by Jirv311; 10-03-2012 at 10:19 AM.
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Old 07-25-2012, 07:30 AM   #2
Zackbo
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Make sure you have coil plugs on right; passenger side. Black in back.

Check injector connections.

Check Cam position sensor connection.

Check Crank Position sensor connection.
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Old 07-25-2012, 08:02 AM   #3
danger1138
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Quote:
Originally Posted by Zackbo
Make sure you have coil plugs on right; passenger side. Black in back.

Check injector connections.

Check Cam position sensor connection.

Check Crank Position sensor connection.
Ive finished with my hybrid a month ago. The only thing i havent changed was the ignition coils. What do u mean by black in back. My coils are all grey on outside portion. I purchased new ones and they are also grey on outside, they say 'FKO186' . Made by diamond. Is this the correct coil for 2.0's or is this for 2.5's??
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Old 07-25-2012, 08:44 AM   #4
Jirv311
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Quote:
Originally Posted by danger1138

Ive finished with my hybrid a month ago. The only thing i havent changed was the ignition coils. What do u mean by black in back. My coils are all grey on outside portion. I purchased new ones and they are also grey on outside, they say 'FKO186' . Made by diamond. Is this the correct coil for 2.0's or is this for 2.5's??
He means the plugs for the coils. The back electrical plugs are black (for 3 and 4). The fronts are white. I'm pretty sure I have them right but I will double check. My next step is to start moving coils and injectors around.
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Old 07-25-2012, 10:34 AM   #5
danger1138
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From the video, it does sound rough and is shaky. Did u have a break in map?
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Old 07-25-2012, 10:37 AM   #6
danger1138
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My hybrid started like that on the initial start up cuz i hadnt re-flashed the breAk in map, once i did re flash it was a bit smoother. I soon found i had a vac leak. The hose that goes from inlet to boost solenoid was completely disconnected. Plugged it in properly and wala, car runs the way its supposed to now. No shaking.
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Old 07-25-2012, 10:42 AM   #7
Jirv311
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I don't necessarily have a "break-in map". The map that is on it is a known good map but was when I had my old motor in it. My thought is to also flash a stock map back to it and see how it responds. I should have hit the throttle a couple times. You can tell it's missing a cylinder (I'm guessing there's no way it would run on just 2?).
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Old 07-25-2012, 11:00 AM   #8
sidewayz
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that is a flat out misfire.. like said check coil connections. White plugs on front coils, black in back.

Also check for vacuum leaks (idling high)

you dont need a "break in map" to start a new build, unless injectors were changed.
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Old 07-25-2012, 01:28 PM   #9
Jirv311
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I do have my laptop at home with ROM Raider and my Tactrix. Could I better diagnose it with that? As far as injectors not firing, coil not firing, etc? I've had very little time with ROM Raider so I apologize if that's a stupid question.
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Old 07-25-2012, 03:00 PM   #10
sam0218
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Put a vac gauge on it see what it says
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Old 07-25-2012, 08:04 PM   #11
Jirv311
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Working on it now. I disconnected one coil at a time on the passenger side to see if there was any difference, and there wasn't. I disconnected BOTH coils on passenger side and still no change. The thing is running on 2 cylinders.

Gonna pull both coils and do a quick compression test on that side. Will update in a few minutes.

EDIT: Compression on both 1 and 3 is at 125psi cold (still no miles on the motor). Both spark plugs looked pretty dry.

EDIT 2!! Swapped out the 2 passenger side injectors with my stock 02 injectors and all is well. I guess my 06 injectors may need to be sent off for cleaning. I did get them used, so that's my own fault.

EDIT 3: I bought some DW650's and the car runs great.

Last edited by Jirv311; 10-03-2012 at 10:19 AM.
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Old 10-02-2012, 11:45 PM   #12
pharaoh20x
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I have a similar problem with my 2004 Wrx. It seems to be firing on only 2 cylinders on the passenger side and I'm getting nothing from the drivers side. I purchased it from the auction and it came with no ecu nor air intake box. I put a used ecu from ebay in the vehicle and an AEM air intake. The car has a full NUR SPEC exhaust and AEM air intake and that's about it.

I had the heads done over by a machine shop as I got the car with a busted timing belt and so this resulted in bent valves. I changed all engine seals, valves, head gaskets, spark plugs, timing belt. crank sensor, map sensor, cam sensor (all brand new parts). The car is dumping a lot of fuel in the oil and so I haven't been driving it, the plugs are filled with gas as well. I also discovered a vacuum leak as the previous owner had a boost gauge, took it out and left a line hanging, I fixed that issue and everything seems to be grounded correctly. What should I do I am sooo fedup and nobody can seem to figure out what the problem is. I did a diagnostic, at first it told me i needed to change cam sensor, crank sensor and map sensor. I changed all of them, now I get a code P0171B-(bank 1 system too lean) and also P0341(camshaft position sensor "A" Circuit Range Performance B1) PLEEAASEE PEOPLE I NEED YOUR HELP BADLY I"M ABOUT TO TOSS THIS CAR. I just really want this problem resolved she is soo pretty I have all 07 upgrades to the body, headlights, suspension, STI spoiler rims, body kit the works.
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Old 10-03-2012, 11:45 AM   #13
99imprezd
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I had the same issue when I installed some used STi pinks.. sent to DW in oklahoma.. get em back with flow charts etc and for $125 runs like new!
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Old 10-07-2012, 12:09 AM   #14
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Quote:
Originally Posted by 99imprezd View Post
I had the same issue when I installed some used STi pinks.. sent to DW in oklahoma.. get em back with flow charts etc and for $125 runs like new!
Hey thanks for the reply 99imprezd, so it was just some clogged injectors that caused your car to run on 2 cyls? mine is dumping a whoolllee lot of gas, I'm getting like less than 10mpg, how do i get in touch with this place you are talking about.
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Old 10-07-2012, 02:10 AM   #15
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Bump....
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Old 10-07-2012, 08:04 AM   #16
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Quote:
Originally Posted by pharaoh20x View Post
How do i get in touch with this place you are talking about.
http://www.deatschwerks.com/contact
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Old 10-07-2012, 10:57 PM   #17
99imprezd
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CatfaceType-R got ya covered.. the guys at deatschwerks are extremely helpful.. shipped my injectors out and had them back with flow charts of the before and after to see the results in under a week.. Car runs soooooo much cleaner now!
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