Ok a few more questions then:
- When you start the car, can you smell petrol / exhaust leak (you should get out of the car for this one)
=> Thankfully not!
- Whilst stationary, can you smell petrol with the windows up inside the cabin?
=> Thankfully not!
- Can you smell petrol whilst driving along with the windows down
=> Thankfully not!
Some thoughts so far:
- Could be the o2 sensor is failing....maybe
- Could be failures with fuel injectors
- Could be carbon build up on spark plugs
Could also be:
- Air intake leak
- Turbo Inlet pipe leak
- Turbo leak
I would recommend doing the following tonight:
- Remove all 4 spark plugs and check them against this chart:
NGK Spark Plugs USA
=> shall do over w/e
- Check the seals of your BOV, the Air-box -> TIP, and the TIP -> Turbo (this one is a bitch to do, might have to move the battery).
=> ditto. I am assuming you mean a visual check of seals (i dont have any leak test equipment).
- Do the MAF test
=> Will do this tonight hopefully.
Tomorrow morning, i would also do a cold start test to see if you can smell the car running rich / exhaust leak.
=> what is a cold start test? do you mean just see if i can smell car running rich after cold start? If that is the case i thought most cars run rich after a cold start.
Also, are you running any mods?
=> Car is bone stock other than OTS 98 Stage1 flash
Anyone else care to comment, i'm no mechanic!