Boost Issues
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Joined: 05-13-10
Posts: 436
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From: florida, close to miami
Boost Issues
Before anyone asks what it has,
Gms1/Hpt term tune, CP, intake take, Dp, k/n filter, treadstone intercooler,Catch Can
As im driving itll be boosting fine, then all of a sudden you can feel it just become a slug, wont boost past 5 lbs, But if i press the gas again down let off and do it again, car drives normal.. Now ive cleaned the Maf, The im and cp tmap sensors, check the wiring, bypassed the vacuum tank and even lubed the bypass valve, there are no codes, and seems to happen basically when it rains,sometimes in the heat but very rarely does it. I havent checked the wastegate yet, there are no codes, and doesnt do it everyday,only sporadically.... Any suggestions to what it could be.. Thinking of replacing the sensors to see if there just failing,ive also replaced the purge solenoid,and the one on the evap canister,but it didnt start doing if i remember right until the one on the canister was replaced,since i had a "cammed" ruff idle, which it fixed that,but then came the problem,put the old one back in car went back to normal,but started doing it again...Kind of odd.
Gms1/Hpt term tune, CP, intake take, Dp, k/n filter, treadstone intercooler,Catch Can
As im driving itll be boosting fine, then all of a sudden you can feel it just become a slug, wont boost past 5 lbs, But if i press the gas again down let off and do it again, car drives normal.. Now ive cleaned the Maf, The im and cp tmap sensors, check the wiring, bypassed the vacuum tank and even lubed the bypass valve, there are no codes, and seems to happen basically when it rains,sometimes in the heat but very rarely does it. I havent checked the wastegate yet, there are no codes, and doesnt do it everyday,only sporadically.... Any suggestions to what it could be.. Thinking of replacing the sensors to see if there just failing,ive also replaced the purge solenoid,and the one on the evap canister,but it didnt start doing if i remember right until the one on the canister was replaced,since i had a "cammed" ruff idle, which it fixed that,but then came the problem,put the old one back in car went back to normal,but started doing it again...Kind of odd.
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Joined: 06-21-05
Posts: 5,060
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From: London, Ontario
Before anyone asks what it has,
Gms1/Hpt term tune, CP, intake take, Dp, k/n filter, treadstone intercooler,Catch Can
As im driving itll be boosting fine, then all of a sudden you can feel it just become a slug, wont boost past 5 lbs, But if i press the gas again down let off and do it again, car drives normal.. Now ive cleaned the Maf, The im and cp tmap sensors, check the wiring, bypassed the vacuum tank and even lubed the bypass valve, there are no codes, and seems to happen basically when it rains,sometimes in the heat but very rarely does it. I havent checked the wastegate yet, there are no codes, and doesnt do it everyday,only sporadically.... Any suggestions to what it could be.. Thinking of replacing the sensors to see if there just failing,ive also replaced the purge solenoid,and the one on the evap canister,but it didnt start doing if i remember right until the one on the canister was replaced,since i had a "cammed" ruff idle, which it fixed that,but then came the problem,put the old one back in car went back to normal,but started doing it again...Kind of odd.
Gms1/Hpt term tune, CP, intake take, Dp, k/n filter, treadstone intercooler,Catch Can
As im driving itll be boosting fine, then all of a sudden you can feel it just become a slug, wont boost past 5 lbs, But if i press the gas again down let off and do it again, car drives normal.. Now ive cleaned the Maf, The im and cp tmap sensors, check the wiring, bypassed the vacuum tank and even lubed the bypass valve, there are no codes, and seems to happen basically when it rains,sometimes in the heat but very rarely does it. I havent checked the wastegate yet, there are no codes, and doesnt do it everyday,only sporadically.... Any suggestions to what it could be.. Thinking of replacing the sensors to see if there just failing,ive also replaced the purge solenoid,and the one on the evap canister,but it didnt start doing if i remember right until the one on the canister was replaced,since i had a "cammed" ruff idle, which it fixed that,but then came the problem,put the old one back in car went back to normal,but started doing it again...Kind of odd.
- Check the TMAP wiring harness for corrosion/breaks. I've had this one in the rain almost exclusively.
- Check the ECM wiring harness and see if it's getting wet. Sounds odd, I know, but I found the right side of mine wasn't taped enough and it would get stupid wet in the rain. It's now sealed up.
Thread Starter
Junior Member
iTrader: (3)
Joined: 05-13-10
Posts: 436
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From: florida, close to miami
the connections are soldered, but need to recheck the bottom one... and i have mine shrink wrapped and in wire loomed taped up... will look into that .. any other suggestions. Like today it hasnt rained at all, and its doing it constantly... press the gas down let off, and then press it again, the car is perfectly normal...
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