rough idle, popping in exhaust
#1
Rennlist Member
Thread Starter
rough idle, popping in exhaust
Let me explain what was done. We put an upgraded turbo in. k26/8 upgraded with a garrett case and inners, set up for 350+rwhp. Installed the Mtune kit with 72lb injectors and 3" down pipe. Prior to this, have a 4" exhaust, lindsey wastegate with adjustment ****, 3 bar regulator, and a refreshed motor with upgraded head gasket.
Here is what happened. Car ran fine as I was told. Took it out, boosted it up, boost went up and inter cooler pipe popped off. Put the pipe back on, took car out, started to run rough again, other side of inter cooler popped off. Now the car runs rough, idles hign 1500rpm and is erratic. Also, now have popping in the exhaust from, I believe; unburned fuel. We now do not have any boost control either.
Vacuum Leak?
Bad Injectors,
Gremlins?
Shop will do a smoke test today for vacuum leaks.
Any thoughts.
Here is what happened. Car ran fine as I was told. Took it out, boosted it up, boost went up and inter cooler pipe popped off. Put the pipe back on, took car out, started to run rough again, other side of inter cooler popped off. Now the car runs rough, idles hign 1500rpm and is erratic. Also, now have popping in the exhaust from, I believe; unburned fuel. We now do not have any boost control either.
Vacuum Leak?
Bad Injectors,
Gremlins?
Shop will do a smoke test today for vacuum leaks.
Any thoughts.