1.8 bucking

[93ETGOCART]

ok so i have been searching and the only threads i can find are for 2.0s or turbos and they arent the greatest help. im not even leaving first gear and it bucks once tries to die and if i give it gas it starts running fine again. it has sat all winter and ive just started running it again. before that i had changed the oil, plugs, wires, and fuel filter and drained it of fluid. what could be my problem?

 

[DSM1G90]

goto Welcome to DSM1eights for dedicated 4G37 users.

There is tonnage of help and info for you here

Also, head to All Things 1.8 - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com

I had two 4G37's and it sounds like you got a major timing issue - pull the dist cap and check under there for carbon traces, clean the rotor contact and do the required base timing.

Good luck - DSM

 

[93ETGOCART]

yeah ive figured it was something to do with the distributor but we have got it in time it wont run one notch either other way

 

[DSM1G90]

it wont run one notch either other way

Why so is that the ECU is taking over no matter what you do and with it being one notch either way is that the system in going into what's called 'open loop' and the ECU is trying to compensate, and doing so, the system isn't in a balance that the ECU is being programmed to recognize.

Read up on doing base timing with the ECU terminal grounded and I guarantee when you do get the timing right on, that motor will suddenly behave since it's gone into a 'closed loop' system.

Good luck-DSM

 

[93ETGOCART]

ok im going to try this as soon as my parents wake up. my car is loud or id do it right now im going to feel like such a tard if this is all it was. i didnt even know what that thing was and when i did my wire tuck i removed it good thing i didnt pull the pin out of the connector and did it the easy way.