Jack1998 Posted May 14 Share Posted May 14 Evening all, Hoping the forum can come to my aid again as everyone was really helpful last time. Having a strange issue with my car. It started after a very spirited drive, first time I've really opened the taps on full boost since owning the car. Since doing that, whenever I start the car it begins with misfire, idles like a bridgeported rotary engine, very lumpy. This doesn't matter if it's cold or hot or if I've just turned it off and popped in the shop. This is almost always followed by no power and it stumbles up the rev range, if I baby the throttle and get it over 3,000 rpm it will clear and it will run absolutely perfect for the remainder of my journey. So far I have no smoke. Once I've gone through the above it will then proceed to smoke at me but only during certain conditions. It will smoke if I have a long period of decelerating, plumes of grey smoke come out the back. Or long periods of driving at low rpm, say 6th at 40mph, once I pull up I will be overtaken by a cloud of grey. On boost I get nothing, if I drive everywhere holding my gears I get nothing. The smoke will sometimes have a blue tinge to it but the car doesn't use any oil! So far I've done a compression test which netted an almost perfect 180psi across all 6, a leak down test at 50psi which netted a perfect score across all 6. 6 new NGK BKR8EIX, 6 new OEM coilpacks, Unwrapped all the coilpack loom and checked for breakages Coolant is spot on, done a sniff test and no headgasket issues. I've had the car running and sprayed brake clean over everything to try and find a vaccum leak but the revs never rise. Pulled the crank sensor and cleaned Pulled TPS and cleaned Fuel filter replaced. When I pulled the plugs the other day to read them they are running hot, so would indicate to me lack of fuel. Im a mechanic by trade and feel bloody well defeated at this point. If anyone has any ideas or has had a similar problem before I start blindly replacing parts that would be greatly appreciated. My next thoughts are fuel pump, pulling injectors and flow testing, checking injector wire continuity. Turbos are in the back of my mind too but there is no smoke on start or on boost, or on overrun after boost. Thanks, Jack. Quote Link to comment Share on other sites More sharing options...
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