Surging Issues
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Joined: Jun 2004
Posts: 174
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From: Pasadena, CA - Granbury, TX
Car: 1982 Pontiac T/A
Engine: 350 Carb
Transmission: TH200c
Surging Issues
OK so my long battle with my idle dropping of is finally solved.
I found a rebuilt carb and went ahead and installed it and BINGO perfect idle. But I get horrible surging at middle to full throttle. Then decoverd the MCS on this new carb did not function so I opend it up to move over my old one then noticed the tps inside was falling apart so i moved that over. both my old TPS and MCS test fine but after putting it all back together I am still getting the major surging. My old carb did not do this but it was very dirty and did no idle so it had to go.
Also recently I have replaced
All vac lines
o2 Sensor
Cap and Rotor
The list goes on. But its obvious its something on this new carb.
Any sugestions would be great as I cant drive it like this and will try anything.
Thanks
-Michael
I found a rebuilt carb and went ahead and installed it and BINGO perfect idle. But I get horrible surging at middle to full throttle. Then decoverd the MCS on this new carb did not function so I opend it up to move over my old one then noticed the tps inside was falling apart so i moved that over. both my old TPS and MCS test fine but after putting it all back together I am still getting the major surging. My old carb did not do this but it was very dirty and did no idle so it had to go.
Also recently I have replaced
All vac lines
o2 Sensor
Cap and Rotor
The list goes on. But its obvious its something on this new carb.
Any sugestions would be great as I cant drive it like this and will try anything.
Thanks
-Michael
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Thread Starter
Member
Joined: Jun 2004
Posts: 174
Likes: 0
From: Pasadena, CA - Granbury, TX
Car: 1982 Pontiac T/A
Engine: 350 Carb
Transmission: TH200c
OK new info.
It only seems to surge right over light throttle up untill you use secondaries.. And my car gave me a code 44 so it is running lean. Guess I need to tune this thing somehow.
It only seems to surge right over light throttle up untill you use secondaries.. And my car gave me a code 44 so it is running lean. Guess I need to tune this thing somehow.
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