Hey alll,
@slixx and myself decided to do a valve clean on his genpu, install tigs and do an oil catch can this weekend. However, there are a few issues after putting everything back together.
Valves were cleaned with throttle body cleaner, soaked (yes the valves were closed when cleaning), and vacuumed out with a shop vac. Air compressor was used to blow any other crap out of the valves.
Car started fine but has a very rough idle, sounds like its hesitating and then eventually just dies regardless of giving it throttle.
I've done this 2 previous times and my car included with no issues, just a bit hard to start after cleaning the valves.
Things we have tried (and triple checked)
- Checked all electrical connectors near the belts including the map sensor and other few plugs, cleaned with contact cleaner and re-connected.
- Cleaned MAF and put original spark plugs back in just for good effect, made no difference.
- Removed intake manifold again, made sure everything was on tight, catch can hoses are on pcv valve and inlet tight
- We did notice there is oil at the bottom of the PCV valve, could this be somehow stuck causing a vac leak?
- Have done a leak test through the system, was one at the bpv but fixed this, same thing. The spacer behind the egr pipe is in place.
- The black box on the top the intake manifold is seated correctly and the rubber bung is firmly in place
- Occasionally received a CEL P0171 lean on idle that we cleared, it seemed to appear again randomly, only thing I could think of was purge solenoid valve has crapped out
- Copper ground wire running through the harness by the hpfp was cleaned and re-seated
- Daz