The car was running perfect, I guess this is where things usually go wrong. Did an oil change on the car the other day and now the car runs on 4 or 5 cylinders. Huge miss. The car fired up no problem twice before and after the oil change. Then went to move it back into the garage and it ran like $hit. Checked all injectors and coils with meter and everything showing OK. Looking under the hood there is nothing obviously wrong. Checked all connectors and made sure everything was connected. Checked AFM's and cleaned them to be sure. Still ran like crap. I don't know where to go from here. I am thinking of pulling the ECU and seeing if there are any codes on it. Other than that I have no ideas. Anybody run into this before? Or any ideas? Any help is greatly appreciated.
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Panic attack! Please Help!! GTR Dead in the water
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what kind of oil did you use? I know it seems like a dumb question but if you touched nothing else, and just did the oil, unless you unplugged a sensor or something. Too thick of oil will make a gas engine sound like the pistons are damn near swappin spots.
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It is right at the line on the dipstick. I believe it was 5 liters. You fire up the car and it will only run on 4 or 5 cylinders. Just has a huge miss. I try applying a bit of throttle and it is the same thing. I actually pulled the plugs the other night and noticed that two of them had fuel on them. I rechecked the coils and injectors for those cylinders and they are OK. I cleaned all the plugs and put them back in and still same problem.
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I didn't test the plugs for spark. I would assume just to pull the coil and plug out then crank over the engine to see if there is spark? The plugs look fine and are all gapped the same, but you never know. I guess I could buy a whole new set of plugs to be sure.
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well you can test them individually but using alligator clips & some wire to ground them while keep the other end in the coil pack. if the task does become too daunting then ya, you could just as easily replace them.
And you don't think any of your cylinders is flooded then do you?1991 HCR32
*edit 1991 SR32
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That is the very first thing I checked on the engine was for flooding. I am running 660 injectors and a chipped ECU. I know it runs fairly rich on idle and due to the fact that the car was only started for a few seconds at a time and then shut off I thought that it was fowled plugs from too much fuel. Pulled all the plugs and let the motor sit overnight. Still the same thing the next day when I put it together. This thing has got me confused.
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Yes, it was running beautiful. First thing I did in the spring after the upgrade was to bring it to a dyno and do some pulls. I rented the dyno for an hour and made sure it wasn't leaning out or having any other problems. The car made 432 whp at 18 psi. I have HKS GTSS turbos on it. All was well, till bam. Now it won't run. Is it possible the CAS just went? How would I test it?
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Originally posted by Paradis View Postwell you can test them individually but using alligator clips & some wire to ground them while keep the other end in the coil pack. if the task does become too daunting then ya, you could just as easily replace them.
And you don't think any of your cylinders is flooded then do you?2015 Audi RS7 Sepang Blue
2009 Yamaha R1 Raven Black - SOLD
2005.5 Audi S4 Sprint Blue Pearl - SOLD
1989 Nissan Skyline GTR - SOLD
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Just wanted to thank everyone for their help. I managed to get the car running. It turned out that my plugs were the problem, but didn't show any problems to the eye. I was a little shocked to see that this was the problem. I have never had that happen before with plugs that they just fail completely. She now runs perfect. Thanks again.
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