95 maxx blowing massive fuel smoke out tailpipe
10-09-2007, 05:15 PM
#1
Senior Member
Thread Starter
Join Date: Jul 2005
Posts: 229
95 maxx blowing massive fuel smoke out tailpipe
ok... the car ran fine, i got gas and drove 10 miles to work and parked the car. 9 hours later, it barely started and after it did it was bellowing raw smelling fuel smoke from the tailpipe. not a little bit, a cloud. no codes, i did the seafoam thing, inj. cleaner, swapped maf, swapped coils ( because i had a few extras ) now im thinking it could only be the pressure reg or one or more stuck injectors. i will do a leak down test soon. anything else i should try ? it is definatly raw fuel, not running rich like a sensor would cause. i think it's getting an overwhelming amount of fuel somehow.
thanx
thanx
Last edited by THEJEFFERATOR; 10-09-2007 at 05:26 PM.
10-09-2007, 05:47 PM
#3
Senior Member
Thread Starter
Join Date: Jul 2005
Posts: 229
when i get the chance, i'll do the leak down test. that should prove the leaking injector possability ? id like to check what i can before pulling the top of the intake since pulling the injectors would only work on the front three. where does the fuel return system run to, directly to the tank or through any evap systems etc. ? thanx
10-09-2007, 05:50 PM
#4
when i get the chance, i'll do the leak down test. that should prove the leaking injector possability ? id like to check what i can before pulling the top of the intake since pulling the injectors would only work on the front three. where does the fuel return system run to, directly to the tank or through any evap systems etc. ? thanx
If your symptom is way too much fuel being delivered to the combustion chamber, why are you doing a leakdown?
10-09-2007, 05:57 PM
#5
Senior Member
Thread Starter
Join Date: Jul 2005
Posts: 229
sorry, guess i didnt specify... fuel pressure leakdown test, not compression. inserting a pressure guage inline between the fuel filter and the rail.... a rapid loss in pressure should indicate a leak somewhere in the path to each cylinder.
10-09-2007, 06:04 PM
#6
Ah, gotcha. That should indeed point out the issue in short time. I believe fuel pressure should remain in the lines for a few hours after you turn the car off, so it will bleed down, but not quickly.
10-09-2007, 06:17 PM
#7
Yeah the FP will stay in the lines for quite a long time before it will dissapate, all of those who have done the fuel filter will know this LOL.. God i thought i emptied all the fuel out of the lines, but due to my lazyness i received about 70PSI of fuel in the face..yes it is as funny as it sounds..of course after the fact.
If you check the FP should very slowly go down, but it would probably takes hours on end.
If you check the FP should very slowly go down, but it would probably takes hours on end.
10-09-2007, 06:25 PM
#8
Senior Member
Thread Starter
Join Date: Jul 2005
Posts: 229
Yeah the FP will stay in the lines for quite a long time before it will dissapate, all of those who have done the fuel filter will know this LOL.. God i thought i emptied all the fuel out of the lines, but due to my lazyness i received about 70PSI of fuel in the face..yes it is as funny as it sounds..of course after the fact.
If you check the FP should very slowly go down, but it would probably takes hours on end.
If you check the FP should very slowly go down, but it would probably takes hours on end.
Thread
Thread Starter
Forum
Replies
Last Post
jmlee44
4th Generation Maxima (1995-1999)
8
10-02-2022 02:13 PM
tarun900
4th Generation Maxima (1995-1999)
19
12-20-2021 06:57 PM
My Coffee
New Member Introductions
15
06-06-2017 02:01 PM
Forge277
1st & 2nd Generation Maxima (1981-1984 and 1985-1988)
12
06-13-2016 09:26 PM