Idle problems after connecting egr pipe
#1
Idle problems after connecting egr pipe
I recently burned my smog pump after its bearings seized so I put a new one on and the car ran good and idled steady. However I saw that the small pipe that connects to the exhaust was not connected so I connected it and now the car has a bad idle and almost stalls at times. What could be the issue here? Why would this pipe being connected caused idle to stumble? Thanks for the input in advance.
#2
I recently burned my smog pump after its bearings seized so I put a new one on and the car ran good and idled steady. However I saw that the small pipe that connects to the exhaust was not connected so I connected it and now the car has a bad idle and almost stalls at times. What could be the issue here? Why would this pipe being connected caused idle to stumble? Thanks for the input in advance.
The vac lines are probably run wrong
#3
No it has no vacuum at that tube. As far as codes go, it's 44 and 94 when cold and 94 and 44 when hot. Vacuum lines are routed correctly.
Last edited by MacSerio; 02-22-2016 at 12:48 PM.
#4
Are all your check valves in place and functioning properly? Along with the Air diverter valve and air bypass valve? You could have a bad or missing check valve between the exhaust and diverter valve, forcing spent exhaust through the diverter into the heads and back into the air pump. Could even be why you burnt up the old pump.
#5
Are all your check valves in place and functioning properly? Along with the Air diverter valve and air bypass valve? You could have a bad or missing check valve between the exhaust and diverter valve, forcing spent exhaust through the diverter into the heads and back into the air pump. Could even be why you burnt up the old pump.
Fyi the old pump seized be cause I washed it and it ruined the bearings.
#7
Burnt plastic from the old air pump clogged both valves and now I wonder if plastic got into the heads and engine. But after unclogging I checked and there is minimal air coming out of the air pump side of the second valve. Should it be completely sealed? Also I found a spark plug had been burnt somehow and the porcelain separated from the metal. One thing after another. Just rebuilt this but it's all stock.
#8
Could still be some crap in the check valves, and probly the air diverter as well. Once you get all the crap out of the check valves they should seal up pretty tight, they are designed to stop exhaust gasses from returning to the air pump. Lol if you weren't in cali id tell you to scrap the entire secondary air injection system all together. Id say you misfire was most likely you faulty spark plug though.
#9
Could still be some crap in the check valves, and probly the air diverter as well. Once you get all the crap out of the check valves they should seal up pretty tight, they are designed to stop exhaust gasses from returning to the air pump. Lol if you weren't in cali id tell you to scrap the entire secondary air injection system all together. Id say you misfire was most likely you faulty spark plug though.
#10
Could still be some crap in the check valves, and probly the air diverter as well. Once you get all the crap out of the check valves they should seal up pretty tight, they are designed to stop exhaust gasses from returning to the air pump. Lol if you weren't in cali id tell you to scrap the entire secondary air injection system all together. Id say you misfire was most likely you faulty spark plug though.