Check engine light is back on. It has been coming on intermittently last year or so, but now it's on solid. Had the codes read yesterday - P0330. What the heck?! I changed both of these and the harness 3.5 years/40k miles ago. When I changed them the first time, both tested Ok, which always raised my curiosity of whether they were actually the problem.
Four situations IMO:
1. The engine is really knocking. Sensors are doing their job and something else is wrong like timing or?... I never hear anything in fact I'm always impressed how smooth she runs with 150k
2. Wiring from sensor harness to main ECM isn't right. Bad ground, bad signal etc.. Guess I could jump all of it If I knew the pin sequence.
3. Bad ECM. Anyone have a loaner?
4. Bad knock sensors. Highly doubt it since they are relatively new and the ones I removed tested Ok.
Gotta get the fixed once and for all. Emission won't pass and as we know, this code shuts down the transmission overdrive
Just want to add. Whenever remove the hidden aic hook bolt, get a longer bolt and put it back with a spacer. So that you can use a wrench to install it or remove it next time. I also added a longer ground and mount it with easier access place.. Thanks