Rough idle out of no where
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Junior Member
Joined: Sep 2023
Posts: 7
Likes: 0
From: Long Beach CA
Car: 1987 Trans Am GTA
Engine: 5.7 liter
Rough idle out of no where
Car struggles to start and when it does it idles rough, struggles to stay running and engine shakes. We previously replaced the distributer + cap + rotor + wires + plugs, the ICM, TPS, IAC and Temp sensors. Car was running good in the morning parked it, came back to start it in the afternoon and was like this. The last work I did was simply remove the PCV and opposite side vent tube in exchange for breathers and capped the corresponding inlets on the intake (Made it run even better). Anyone know what the problem could be, tips what to do?
Supreme Member
Joined: Jun 2012
Posts: 1,368
Likes: 193
From: Canada
Car: '18 Chev Camaro SS 1LE
Engine: LT1 6.2L
Transmission: T56
Axle/Gears: 3.91
Re: Rough idle out of no where
Can you get a scan (data log)?
'em TPI systems can be tricky to fix without seeing what the ecm/sensors are doing
'em TPI systems can be tricky to fix without seeing what the ecm/sensors are doing
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