The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Problems running at operating temperature

kevinc · 11-20-2021, 04:55 PM

Now the next thing. While driving on the highway I went up a long hill. I had to step into the accelerator a bit to maintain speed. When I did there was a really quick pinging and it went away. The check engine light came on. When I got home I pulled codes. I had a code 43.

Looked it up and it's an electronic spark control error when ping is detected, it pulls the timing back 20 degrees. So I'm off to chasing that issue now.

Kevin C

11-20-2021, 04:55 PM	#24
kevinc Registered User Join Date: Mar 2007 Location: Waxahachie, TX Posts: 195	Re: Problems running at operating temperature Now the next thing. While driving on the highway I went up a long hill. I had to step into the accelerator a bit to maintain speed. When I did there was a really quick pinging and it went away. The check engine light came on. When I got home I pulled codes. I had a code 43. Looked it up and it's an electronic spark control error when ping is detected, it pulls the timing back 20 degrees. So I'm off to chasing that issue now. Kevin C __________________ 1988 C1500 Regular Cab, Long Bed, 2WD.