The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Post a Question

Confused, no clue what to do.

Please Support Fuel Injector Clinic

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Inillortep

Probationary Member
17
0
Nov 2, 2010
Youngstown, Ohio
This car has been down for almost a year now, but I won't give up on it.

Heres the problem. My car is dumping gas while it's running. Raw gasoline comes out of where the gaskets are on the exhaust side. The actual exhaust is pure white and has a raw gas vapor that comes out as well. There is NO PROBLEM WITH THE HEAD GASKET. Don't tell me there is because there isn't. I am getting spark to all 4 cylinders and I have tried stock coil and wires as well from a working car. My brother has a 93 so I have tried just about everything off of his I can think of and his is running. All four injectors have been cleaned and are working fine. Fuel pump sounds normal but I'm going to pull it out anyways. Compression is good as well.

That's all I can think of right now, mind is going pretty blank. I will update this as I remember what else I forgot to put that I checked. Sorry about my horrible structure for writing, suck at this.

Already on a first edit: I removed the head to see if it was cracked, it was not. Valve seals were replaced while it was off and valves and pistons looked fine but I cleaned them up a bit anyways. Spark plugs were also replaced.
 
Last edited:
Sort by date Sort by votes
My car had a ton of smoke when I bought it. Filled the street with smoke. Two things took care of 90% of it. One it had a really nasty boost leak, I could literally slide one of the pipes on and off by hand. And the second issue the MAF electrical connector, the wires were really frayed. One wire was actually disconnected. I thought it was amazing it would even run like that.
You can imagine how disappointed I was when I showed up to buy it. The ebay ad said "car in perfect condition"
 
Upvote0
Well it's not really that smokey, it's just like a little vapor that quickly dissapates. I might make a video of it since it will probably help a bit. I tried my brothers MAS and MAFT but no change there. Even cleane dmine up before I put it back on. I fixed a ton of boost leaks but I still have a couple, I doubt it's affecting it much because when the car was still running I was making 17psi with a massive crack in my intake before it would stutter.

I believe there is a short in the harness because every now in then after playing around with everything it will run, then it will go to crap again out of nowhere. It was running without going dumb on me for a whole 3 days and fixing the boost leaks caused it to pull so hard. It was amazing to drive it again for those few days.
 
Upvote0
Inillortep said:
Raw gasoline comes out of where the gaskets are on the exhaust side. The actual exhaust is pure white and has a raw gas vapor that come sout as well.
Click to expand...

I'm not being funny but I don't understand where the raw gasoline is coming out of, where are the gaskets you're talking about? How old is the gas in the tank, old gas can also cause smoke, ask me how I know...I learned the hard way that with a car that has been sitting for months you have to fix one problem at the time as chances are there's more than one.
 
Upvote0
what if the cylinders are FILLED with gasoline? have you removed the spark plugs and looked into the holes? LOL
 
Upvote0
it could be a short that is keeping the injectors open. has to be the ground side of the injector harness. the ecu controls the ground side you have to find out what color wire it is and trace it all the way to the computer .
 
Upvote0
theres also a lil' ground pack the injectors are wired to,it should be next to the battery.
 
Upvote0
When this first started it happened when I was leaving my friends house. It just happened by the time I got to the end of his driveway. I have refilled it when it was running for those 3 days and it was completely fine. The gaskets I'm talking about would be the exhaust manifold to head, exhaust manifold to turbo, turbo to o2, exhaust manifold to wastegate, and o2 to downpipe. Once it gets to the downpipe it starts to make a puddle under the car.

I used to have SAFC, used my brothers ecu and it worked. Removed the safc from harness, still works. Got my own ECM link, still worked. ECU's are fine, not the problem.

Removed the spark plugs multiple times, they end up getting soaked in gas, i think the puddles of gas just get pushed out the exhaust valves.

I was thinking it was either an injector related short of MAS. I know which four wires from the ecu are for the injectors, they seem fine up to the point of the hole in the fire wall where I can see. From the engine bay they seem fine for the most part but really tight, I think only one has a tear in the rubber on the outside of the wire.

awzer2, if your talking about that resistor pack or whatever thats by the right side of the intake I already tried my brothers.
 
Upvote0
I bought a Fuelab AFPR but it completely disappeared, the fact that the car will run fine at random times leads me to believe its fine though. I have thought about grabbing another stock one to try anyways though. I'm pretty certain it's electrical related, I'm trying to find a harness.
 
Upvote0
Thanks for trying to help though. As for the coolant temp sensor. I thought about that but my brother basically said I was dumb for thinking that since he said it was in a closed loop. I read something about it using that for the start of the loop or something though. I'm not sure but since you suggested it I will take a look.
 
Upvote0
Inillortep said:
When this first started it happened when I was leaving my friends house. It just happened by the time I got to the end of his driveway. I have refilled it when it was running for those 3 days and it was completely fine. The gaskets I'm talking about would be the exhaust manifold to head, exhaust manifold to turbo, turbo to o2, exhaust manifold to wastegate, and o2 to downpipe. Once it gets to the downpipe it starts to make a puddle under the car.

I used to have SAFC, used my brothers ecu and it worked. Removed the safc from harness, still works. Got my own ECM link, still worked. ECU's are fine, not the problem.

Removed the spark plugs multiple times, they end up getting soaked in gas, i think the puddles of gas just get pushed out the exhaust valves.

I was thinking it was either an injector related short of MAS. I know which four wires from the ecu are for the injectors, they seem fine up to the point of the hole in the fire wall where I can see. From the engine bay they seem fine for the most part but really tight, I think only one has a tear in the rubber on the outside of the wire.

awzer2, if your talking about that resistor pack or whatever thats by the right side of the intake I already tried my brothers.
Click to expand...
+1^
no i meant a ground pack thats connected to the injectors clips . And you mean the power transistor unit.. yeah i was gonna say that might be the culprit.
are they all the same types of fuel injectors? all 1g? or all 2g? if you mix and match youll run into problems like you stated... and you're positive the fuel injectors arent bad? and your positive the coil packs are working? :hmm:
 
Upvote0
Injectors were one of the first things I tried. At first I tossed in my friends brand new FIC 650s. That didn't change anything so I ruled that out. I started to think it might have been an injector again so I sent my FIC 750's to Fuel Injector Clinic and they said it was fine and barely even dirty. I had them clean them anyways. Came out to 730cc flow rate. My brother tested for spark by spinning the CAS and I had spark with all four. I did the ohm test for the injector plugs and they all came out the same.

I checked all fuses in the engine bay and they are all fine. I'm not sure if you can test relays or not but I thought of that as a possibility. I'm not good at all with electrical. My fuel pump fuse blew a couple times though when the problem first started. The fuel pump is rewired for the walbro.

Never heard of a noid light but I googled it and it looks like it's worth a try.
 
Upvote0
Sounds like you found the component of your problem. If your fuel pump fuse has blown a couple times in a week and it has also been modified then you have your answer. Trace the "re-wire" job done for the pump and pull it out of the tank. Check for any cuts, splits, frays, ect...
 
Upvote0
775TSI said:
Sounds like you found the component of your problem. If your fuel pump fuse has blown a couple times in a week and it has also been modified then you have your answer. Trace the "re-wire" job done for the pump and pull it out of the tank. Check for any cuts, splits, frays, ect...
Click to expand...

Definitley check your rewire job.
 
Upvote0
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!

Similar threads

  • Question
I have no clue what else to check or do
Replies
11
Views
942
toppertopper
  • Question
$4000.00 and confused what to do.
Replies
10
Views
936
GVR4592
xTSIx
  • Question
no clue
Replies
6
Views
824
brute
brute
1991LaserRsT-5
  • Question
Car died. no clue what happened
Replies
4
Views
648
c_riggan
c_riggan
  • Question
no clue what's up
Replies
3
Views
789
Greg Collier
Boosted Fabrication
ECM Tuning
ExtremePSI
FIBA Motorsport
Fuel Injector Clinic
Innovation Products
Jacks Transmissions
JNZ Tuning
Kiggly Racing
Morrison Fabrications
Rix Racing
RockAuto
STM Tuned
Support Vendors who Support the DSM Community

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top