Rough Idling and Surging
#1
Rough Idling and Surging
I've been have much trouble with this for a long time now. When first cranked up the car idles real rough jumping from 500 to 1000 rpms , after warming up the car then starts to surge and the engine light flashes on and off as it does it. Sometimes when stoppingthe car also stalls. Here is a list of some parts i replaced:
Replace most vacuum lines
Fuel Sending Unit and Pump
Fuel Filter
IAC Valve
Purge Canister
PCV Valves
TPS
Coil Pack
Plugs and Wires
O2 Sensor
After looking around I've read it may be my injectors..any ideas??
Replace most vacuum lines
Fuel Sending Unit and Pump
Fuel Filter
IAC Valve
Purge Canister
PCV Valves
TPS
Coil Pack
Plugs and Wires
O2 Sensor
After looking around I've read it may be my injectors..any ideas??
#2
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Join Date: Jul 1999
Location: Woodlands, MB, Canada
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Car: 1990 GTA
Engine: 5.7
Transmission: 4L60
Axle/Gears: 3.27 Posi
Re: Rough Idling and Surging
What car, motor, year ?
Do you have any trouble codes set? -- http://sethirdgen.org/dtc.htm
Your problem sounds a lot like a problem my friend had with his 89 GTA.. He had a bad MAF sensor.
When you start the car and it's running bad, unplug the MAF.. If it starts running better, then that's a sign the MAF could be bad.
Do you have any trouble codes set? -- http://sethirdgen.org/dtc.htm
Your problem sounds a lot like a problem my friend had with his 89 GTA.. He had a bad MAF sensor.
When you start the car and it's running bad, unplug the MAF.. If it starts running better, then that's a sign the MAF could be bad.
#6
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Join Date: Nov 2004
Location: cleveland ohio
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Car: 1991 camaro RS
Engine: CharlesOdoryOB
Transmission: 82513892892
Axle/Gears: pbr disc 3.27 nine bolt
Re: Rough Idling and Surging
had the same problem i put my old tbi iac and it fixxed the problem
it will just idle 100 rpms higher but no more surgeing or stalling
in park it idles around 850 but 600 in gear
it will just idle 100 rpms higher but no more surgeing or stalling
in park it idles around 850 but 600 in gear
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