As you know, I rarely post for help, so that should be a sign of how truely desparate this situation has become. I have been on the car with a volt meter/ o'scope for 30+ hours this week to no avail. Anyway..
The update...
Smoking fixed: combination of cam covers that were too loose and a bad PCV valve.
Lack of acceleration fixed: Vaccum/boost leak, hose on the top of the throttle body broke.
All codes fixed: New knock sensor fixed the code 55. The sync issue was far more involved. First I hooked my scope up to the crank position sensor pins at the ECU and the waveform appeared normal. The sensor ohm tested correctly, but to triple check, I pulled the sensor off and looked at the teeth.. all were in place and the wheel wasn't wobbling.
I then turned to the cam position sensors.. Testing them on the scope at the ECU showed a good wave form for #1 and a questionable form for #2. I then tested the signals at the sensor pins-- both were good. (Their resistance was also good) I then ran a continuity test from the cam position harnesses to their corresponding ECU pins. The negative wire from cam position #2 was open, so I ran a wire from the sensor to the ECU harness, tapping both ends.
The result? All codes are cleared, but the car still runs like shit. It cuts out anywhere below 2000, bogs when the gas is hit under 2000, and rev limits itself when on the gas/boost. What am I missing? The car is almost undriveable. Could this possibly be mechanical?? I can't imagine how, but I've gone through my entire list.
The update...
Smoking fixed: combination of cam covers that were too loose and a bad PCV valve.
Lack of acceleration fixed: Vaccum/boost leak, hose on the top of the throttle body broke.
All codes fixed: New knock sensor fixed the code 55. The sync issue was far more involved. First I hooked my scope up to the crank position sensor pins at the ECU and the waveform appeared normal. The sensor ohm tested correctly, but to triple check, I pulled the sensor off and looked at the teeth.. all were in place and the wheel wasn't wobbling.
I then turned to the cam position sensors.. Testing them on the scope at the ECU showed a good wave form for #1 and a questionable form for #2. I then tested the signals at the sensor pins-- both were good. (Their resistance was also good) I then ran a continuity test from the cam position harnesses to their corresponding ECU pins. The negative wire from cam position #2 was open, so I ran a wire from the sensor to the ECU harness, tapping both ends.
The result? All codes are cleared, but the car still runs like shit. It cuts out anywhere below 2000, bogs when the gas is hit under 2000, and rev limits itself when on the gas/boost. What am I missing? The car is almost undriveable. Could this possibly be mechanical?? I can't imagine how, but I've gone through my entire list.