Stalling, Too much fuel...

[InjenTalon96]

just recently i started having a stalling problem. say after ive been driving my car for a while, over 1.5 or 2 hours ill say sit somewhere and let it idle, ill start smelling mad fuel and my car will start to stumble and then the rpm's just drop and poof stall. this just started happening lately, so im hoping it will be an easy fix. i think im just gonna get my ecu recapped and go from there. could it be my stock mas, is it faulty?

 

[dsmsucks]

just recently i started having a stalling problem. say after ive been driving my car for a while, over 1.5 or 2 hours ill say sit somewhere and let it idle, ill start smelling mad fuel and my car will start to stumble and then the rpm's just drop and poof stall. this just started happening lately, so im hoping it will be an easy fix. i think im just gonna get my ecu recapped and go from there. could it be my stock mas, is it faulty?

Hey bud sounds like the o2 is going.

I had the same problem, turns out the ecu was bad!

 

[skunkdeez0079]

I am hoping someone will see this post im trying to solve why my car is getting to much fuel.at first when installed a motor and wiring harness etc i first started the car and it wouldnt start.first i check spark getting spark just no fuel.then shortly after something went wrong spark was lost.now no spark and no fuel great
Spark somehow came back (magic) my guess after weeks of trying to figure out what happen.took it to mitsubishi and it ended up being my igition switch and fuel pump relay ! Even though i replaced it with a working one off a working car.anyways finally got fuel and spark .now im getting to much fuel wtf. Please help what should i do im lost and need help thanks guys.

 

[luv2rallye]

By too much fuel do you mean too rich after it's already warmed up? If so, check for bad 2 wire coolant temp sensor (bad sensor will signal ECU engine is still cold so ECU will richen mixture). http://www.dsmtuners.com/threads/bucking-for-a-couple-of-minutes-after-start.385461/#post-152374418

 

[4G63_fiend]

have you checked for fuel leaks?

 

[4G63_fiend]

You said you are going to get a remap, so do you have a way to check fuel pressure in the car? Or possibly have an AFPR to check under the hood while the problem happens?

 

[91AwdBigRed]

Do you have a wideband installed? whats your afr at idle?

 

[skunkdeez0079]

Its a 97 eclipse gs n/t 2.0 i dont have anything done to it other than dc headers and a full cat back exhaust with cat still intact. Mitsubishi just rewired the 2 wires going to the ( ect ) got the check engine light off. Temp seemed normal till i got home and turned off the car and started up a hour after to go out and bam sounded horrible. definetly sounds rich and smells rich .blue smoke out the tail pipe and when i take off or just starting it early in the morning while starting it black stuff came out of the exhaust.! No check engine light.no fuel leaks ,minor oil leaks and power steering leakeage but no fuel leaks. put my scanner to it and no codes come up. just the 5 monitors that need to set evap cat 02s htr and egr blinking. I use to have a random code
( p1294 target speed not reached)went away stayed away.and Just to be up to details.i have completely deleted the ac unit, ac condenser ,heater core and extra lines ,cruise control windshield washer fluid reservoir. Not that this matters but in case just so you guys know would air in the system cause this to all happen if so which coolant should i use 50/50 or straight anitfreeze.

New gates timing belt ( tdc )
New tensioners and pulleys
new spark plugs (not good cause of fuel)
New starter
new battery
New radiator
New thermostat
New engine coolant temp sensor
New temp switch
New hoses
New slim fans
new rad cap
New fuel cap
New gaskets inlet outlet
Fresh coolant now dirty

please help thanks guys sorry for long reply