Hi All
This abit of a long story, sorry.
Ok this is the history behind the problem. I decided that it would be a good idea to pull out the engine so I can replace the clutch and in the mean time I replaced the oil pump (N1 item), water pump (standard) and timing belt (standard). I also replaced all the seals on the intake and exhaust side of the engine. Injectors where ultrasonically cleaned. I have put on aftermarket dumps and front pipe. I also cleaned out the idle control unit (pulled it apart and cleaned), throttle bodies (I pulled out the butterflies to clean them), intercooler and piping including bypass valves, painted and cleaned the intake plenum. I have not touched the computer or the tuning.
So when I put the engine back in the car started to idle high (around 1200) and rough (sounds like it is back firing). So I searched thought the forum and searched everything from rough idle to how to adjust idle, I have tired the following to no avail:
- Cleaning AFM’s
- Replaced spark plugs (to iridium tip NGK ones)
- Checked timing belt marking so they match up twice
- Did a computer diagnosis check which came up with a faulty TPS.
- Have done idle adjust procedure according to manual and FAQ guide
- Screwed the idle screw in completely.
- Checked vacuum lines (but I don’t have proper vacuum line diagram so I don’t know if they are connected in the right way)
- Pulled apart TPS and checked it too but it seemed fine.
I think that’s it.
I am trying to avoid pulling off the plenum.
So if anyone has any ideas, I am all ears. I am getting sick of the car not running.
I may have missed some details so I wrote this at work and I keep getting interrupted.