Bx3

My 2000 4.2 CEL came on and has a very rough idle. Have the following codes;

17549 - Load Calculation Cross Check: Implausible Value P1141-35-10 ---intermittent

17538 - Fuel Trim: Bank 2(Mult): System too Lean P1130-35-00

17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28): Incor. Correlation P1340-35-00

16684 - Random/Multiple Cylinder Misfire Detected P0300-35-00

16685 - Cylinder 1: Misfire Detected P0301 - 35 - 00
16686 - Cylinder 2: Misfire Detected P0302 - 35 - 00
16688 - Cylinder 4: Misfire Detected P0304 - 35 - 00
16687 - Cylinder 3: Misfire Detected P0303 - 35 - 10 intermittent

17927 - Camshaft Adjustment; Bank 1: Malfunction P1519 - 35 - 00

Can anyone help me cipher these codes?? Where do I start?

4Driver4

Timing belt issue or bad cam adjuster (a guess).

Bx3

Timing belt, tensioners etc were replaced at 155k (car has 167k now). What/where are cam adjusters located?
Thanks for the input!

2.7Lturbo

bad coils maybe?

Bx3

I'm considering that as well and may very well replace them and plugs "just because". It seems too coincedental that the misfires are cylinders 1-4 though so I suspect something upstream of the coil packs like a "cam adjuster"... If I could figure out what that is... I have replaced the "cam position sensor" because it was easy and I could find it!

2.7Lturbo

yeah i originally thought CPS but you replaced that... cam adjuster is a possibility. this is the turbo 8 correct?

4Driver4

Agreed. The cam adjuster changes intake cam timing. It is located on the back of the head.

Step one is to verify cam timing. Make sure both the timing belt and the bank one chain is set correctly.

Bx3

OK, not to come off sounding like a wise mouth but what would 'Step Two' be?.. I ask because I am assuming that the timing belt and chain are set properly given that the motor ran great for 16k miles after my TB replacement was done. Does that make sense?

Bx3

This is a 2000 4.2 v8

2.7Lturbo

Engine Speed Sensor (G28): Incor. Correlation P1340-35-00 that bugs me the most out of the because it cant be verified other then replacing, and could be causing the ECU to "read" timing problems.. damn multiple redundant sensor arrays !