CEL for Knock Sensor Low Input
Thread Starter
Advanced
Joined: May 2015
Posts: 50
Likes: 0
From: Bel Air MD
CEL for Knock Sensor Low Input
Hello, I recently bought a 2000 Corvette that the previous owner had swapped an LS2 into. He put the LS1 knock sensors in the side of the LS2 block where the LS2 style normally goes. He said he never got it tuned so I was kind of expecting these codes eventually. P0332 and P0327 (Knock sensor circuit low input banks 1&2).
So as far as I know the PCM basically needs to have the sensitivity tables changed to accommodate the new sensor location, correct?
The only other though I had was to get the Racetronix harness that adapts LS2 sensors for an LS1 PCM and have the PCM changed to read those. Is there any advantage to this over just having the sensitivity changed for the stock sensors? Thanks
So as far as I know the PCM basically needs to have the sensitivity tables changed to accommodate the new sensor location, correct?
The only other though I had was to get the Racetronix harness that adapts LS2 sensors for an LS1 PCM and have the PCM changed to read those. Is there any advantage to this over just having the sensitivity changed for the stock sensors? Thanks
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
The tables in a LS1 vs a LS2 ECM for the knock sensors may not be the same -so I don't believe the data will interchange---A tuner can modify your tables in your LS1 ECM but it may take some trial and error to it the codes not to re-appear --You can always have a tuner simply permanently delete the KR codes and they never will come back---However then you won't get a code IF they eventually fail---Normally when a knock sensor fails your engine will ping like crazy anyway so you'll know even without a code--
Thread Starter
Advanced
Joined: May 2015
Posts: 50
Likes: 0
From: Bel Air MD
The tables in a LS1 vs a LS2 ECM for the knock sensors may not be the same -so I don't believe the data will interchange---A tuner can modify your tables in your LS1 ECM but it may take some trial and error to it the codes not to re-appear --You can always have a tuner simply permanently delete the KR codes and they never will come back---However then you won't get a code IF they eventually fail---Normally when a knock sensor fails your engine will ping like crazy anyway so you'll know even without a code--
