cranks but won't fire up

JeremyH

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yes unplug the maf wire(in your case the mafia extension from the maf right at the cai) If you have fuel and spark the car will start after a few tries like this if there is a tune/pcm/power issue. It sjust one of those things to rule out.
 

bullitt boy

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Going to inspect plugs first thing in the morning. I have six spares will change any I find questionable [hope its not all eight] then will disconnect battery and try restart. I don't think it is tune related car has been running strong on the current tune but if plugs and battery are a dead end will disconnect MAF and try a start up.
 

bullitt boy

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Ok will try the unplug first sounds the easiest and will help pin point the problem. Thanks for the help guys
 

KungFuHamster

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Going to inspect plugs first thing in the morning. I have six spares will change any I find questionable [hope its not all eight] then will disconnect battery and try restart. I don't think it is tune related car has been running strong on the current tune but if plugs and battery are a dead end will disconnect MAF and try a start up.
check all the hoses on your intercooler too...you may have had one blow off/loose
 

JeremyH

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If the battery or alternator is acting up it can cause problems with tune/pcm and you may need to reload the tune. Had that happen to me out of the blue once.
 

JeremyH

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Forgot to mention, easy check to do, check all the fuses and relays that you can. If anythings blown that has to do with ignition or fuel the car wont start either.
 

bullitt boy

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Re- loaded while waiting for flat bed. As for loose hoses and connections did a quick inspection of those and found no fluids or "loose ends" that were obvious at least. No fluids on ground under car at all.No fluids on or around engine either.
 

bullitt boy

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Fuel filter only has about 5k on it.
Started pulling plugs and they look very good so far. Have the battery disconected am going to reconnect in about 5 minutes and reflash the car.
I have a sinking feeling that I may have a fried PCM.
Anyone with aPCM for a manual trans car please get in touch with me.Thanks guys . Still at it.Will post results of reflash shortly.
 

Chrome61

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Wish you had a way of checking fuel pressure, sounds like your fuel pump took a shit.

Just a thought.
 

bullitt boy

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No boost a pump duel gt 500s only 3.5 weeks old.

Well the battery disconnect and reflash did not work.
After cranking the car i pulled a plug and it did smell of gas.
Disconnected MAF and car still would not start.
Just for shits and giggles going to check the rest of the plugs ,but I figure even with bad plugs car would run ,run like shit but at least run.
 

HG6283

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Did the backfiring during decel sound like it was backfiring through the intake, or out the exhaust?


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Ok this is going to sound really stupid, but pull your fuse box cover off in the engine bay and tighten all the bolts you see in there very tight, there should be 3-4 of them. I have had my car not start because one of them was just a little loose.
 

bullitt boy

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I believe it was exhaust backfire but not 100% sure . What are you thinking?
 

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