lol thank you

i know quite a few v6 guys running well over 8psi on up to 11 or so, especially the mustang 3.8l guys, i know the exhaust leak isnt effecting startup. i just really was more concerned with compression issues because i know nothing about lost compression and want to know the signs of it. the ONLY reason why i was afraid i may have a compression issue is because someone told me "hard start"

welll.. the reason why i feel its not compression issue is because I can make it have a hard start. if i had a compression related hard start i woudlnt be able to make it happen whenever i wanted.

i can go out there right now, start it up just fine.. but as long as i dont drive it. i'll have a hard start the second time around.

if i drive it.. no hard start ever.

basically everywhere i posted this question the same response has been tuning issue. NO ONE not ONE person mentioned compression.. that was all outta my head since i know nothing about it.

 

I'll try one more time - ALLLL my chips are on the Forward O2's - Let me know if I win..

BTW - That's just for the starting issue.

 

for a startup issue?

i dont have any check engine light or anything.

i'll go ahead and pull them and clean 'em up im sure they need it. afterall my wideband was AWFUL so theres no reason why my o2's on my headers woudlnt be the same.

 

Didn't you say it won't start after shuting it down for awhile ? Or is that fixed already ?


My bets been placed - Cleaning those won't help.

 

no, it just wont start if i start it in the driveway and then turn it off without going anywhere. which is why i now feel its a tuning issue. that the ecu is throwing too much fuel at it for startup. and thats why i can smell fuel at that time.

 

You think that won't effect the O2's or the plugs ? Sure, you have to correct the fuel issue. That's a definite. The plugs may survive but will your O2's ? You have headers , so where are your O2's in relation to your converters? If you have LT's their down stream further, pretty damn close to the cats right ?

 

no cats are no where near the headers now, because its turbocharged.

so its got the o2's on the headers and off the header goes to a Y pipe with a turbo flange. turbo mounts to flange, then from the downpipe it runs to a high flow cat then another o2 and then out to my muffler.

 

I edited that ^^^^ - just a little.

Damn dude, you sure that thing is safe to drive ?

I dunno.... - If you have a remote starter, I would be using it @ a safe distance, atleast until the problem was figured out/fixed.

That would suck if you ended yourself - Compromised, from flying f150 fragment.

 

lol, like i said the problem doesnt happen all the time.. i can pretty much make it happen as well as prevent it.

however the only way to prevent it is if i start it... i better drive it...

 

Talk to your tuner about the starting issues. He may have it adding too much fuel on warm/hot starts. When you modify a tune everything uses look up tables. So when the temp changes the PCM looks for a correction factor. While you may have the tune dead nuts on for a cold start when the engine warms up the PCM uses a correction factor to adjust for the temp difference. If that correction factor was not modified for the size of injectors that you have it will cause issues.

Regards

Jean Marc Chartier

 

ah, i did not know that.

thanks for posting up