fuel injector question
fuel injector question I got my pcm tuned for 36lb injectors but forgot i still had my stock injectors in the vehicle. Started it up a lot of popping out of the exhaust at like 1000rpms car still won't idle so i changed the set screw and threw my 36lb injectors in and adjusted the tps..... Need less to say car now won't start and the oil presssure is extremeley low on crank so i checked my oil and it smells like gas i was wondering if the bigger injector tune was causing the stock injectors to run really rich or if i need to look elsewhere to figure out why the vehicle has fuel in the oil now
TECH Enthusiast
Joined: Aug 2010
Posts: 543
Likes: 0
From: New Hampshire
First, I'd change your oil asap. Gas in the oil = hurt engine.
As for the problem, sounds like an injector might be leaking/stuck, or tune is spraying WAY to much fuel.
Someone else will chime in and give a better answer!
.02
~edit~ I know someone will ask, so mods to car?
As for the problem, sounds like an injector might be leaking/stuck, or tune is spraying WAY to much fuel.
Someone else will chime in and give a better answer!
.02
~edit~ I know someone will ask, so mods to car?
i'm changing the oil today but i don't want to change it and not know if that was the problem so in a little bit im going to go lift the fuel rail up and see if any are leaking.
mods are: comp 280 xfi cam, 1.6 rr, le2 heads and intake, 58mm throttle body and 36lb bosch injectors, long tube with ory no rear o2's
mods are: comp 280 xfi cam, 1.6 rr, le2 heads and intake, 58mm throttle body and 36lb bosch injectors, long tube with ory no rear o2's
TECH Enthusiast
Joined: Aug 2010
Posts: 543
Likes: 0
From: New Hampshire
Id change the oil before cranking it again lol but thats just me, Id prefer to dump oil a couple times vs rebuilding engine.
I'd start with checking for leaking injector, its easy and free lol
I'd start with checking for leaking injector, its easy and free lol
Look for a leaking fp regulator dumping fuel into the intake - see if there is fuel in the vacuum line to the regulator.
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Look elsewhere. Everyone is thinking backwards here so far; stock injectors with a 36lb injector tune will cause LESS fuel to be supplied than needed.
Look for a leaking fp regulator dumping fuel into the intake - see if there is fuel in the vacuum line to the regulator.
Look for a leaking fp regulator dumping fuel into the intake - see if there is fuel in the vacuum line to the regulator.
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Verdad Gallardo TECH Enthusiast
Joined: Aug 2010
Posts: 543
Likes: 0
From: New Hampshire
Look elsewhere. Everyone is thinking backwards here so far; stock injectors with a 36lb injector tune will cause LESS fuel to be supplied than needed.
Look for a leaking fp regulator dumping fuel into the intake - see if there is fuel in the vacuum line to the regulator.
Look for a leaking fp regulator dumping fuel into the intake - see if there is fuel in the vacuum line to the regulator.
I wasnt saying it couldn't be anything else
the car wasn't running well witht he stocks either it started once and that was it, changed oil today though pulled out plugs all 8 were fuel fouled cleaned them up and installed, with the set screw adjusted the car idles no but rough sometimes low give it gas and it goes up close to what the idle should be at, also full throttle i get up to maybe 1200 rpms im suspecting the fpr to be bad fuel filter fuel pump and injectors are all new
