2020 zl1 check engine light - Page 2

Vigilante375 · 03-28-2020, 04:54 PM

That's easy. Push it a little each day and bring it back.

LT4Greg · 03-28-2020, 05:09 PM

Try a different brand of gasoline like Shell V-power 93 or Chevron 93!

SJFGTO · 03-28-2020, 05:58 PM

Quote:

Originally Posted by Stephen12ZL1

There have been a few people with this malfunction code. It ended up being a bad knock sensor. A very cheesy and cheaply made part...Get it to the dealer and I'm sure they will replace it and you will be back to perfect.

^^^This. More likely than not a bad knock sensor. If it randomly shows up again after the code was cleared, I’d replace the KS.

20Bluezl1 · 03-28-2020, 06:58 PM

Quote:

Originally Posted by Vigilante375

That's easy. Push it a little each day and bring it back.

Oh trust me I push it hard everytime it's nice out unfortunately today and tomorrow its raining.

Alain · 03-28-2020, 09:43 PM

Quote:

Originally Posted by 20Bluezl1

Oh trust me I push it hard everytime it's nice out unfortunately today and tomorrow its raining.

sorry to hear about your troubles. keep driving it hard, if its the knock sensor, it'll come right back and you'll be good to go with the repair.

where in NJ are you?

20Bluezl1 · 03-29-2020, 12:30 AM

Quote:

Originally Posted by Alain

sorry to hear about your troubles. keep driving it hard, if its the knock sensor, it'll come right back and you'll be good to go with the repair.

where in NJ are you?

Bergen County and you?

Alain · 03-29-2020, 04:14 AM

Quote:

Originally Posted by 20Bluezl1

Bergen County and you?

I live in Wanaque now, moved out of Bergen County last September (Rochelle Park).

what dealership did you take the car to? Paramus?

20Bluezl1 · 03-29-2020, 09:12 AM

Quote:

Originally Posted by Alain

I live in Wanaque now, moved out of Bergen County last September (Rochelle Park).

what dealership did you take the car to? Paramus?

I took it to Bridgewater, I bought it there and I read good things about the service department but I'm not sure know. Where do you go?

everjeff · 08-31-2020, 05:05 PM

I've had my 2020 for a month with 1000 miles and just got the CEL and knock sensor replaced. Glad to see I am not alone!

20Bluezl1 · 08-31-2020, 06:13 PM

Quote:

Originally Posted by everjeff

I've had my 2020 for a month with 1000 miles and just got the CEL and knock sensor replaced. Glad to see I am not alone!

Yea it sucks but dealer cleared the code and it has been back yet fingers crossed.

Rext · 07-26-2021, 09:38 AM

I have a 2018 ZL1. I had the oil pump issue at 7,000 miles and the dealer fixed it. Took it to NCM motorsports park last monday for some track time and after about three laps it shut down to limp mode. Drove it to Oreilly AP and they diagnosed it with a knock sensor code. I ended up driving it easy back home about two and a half hours with no SES light on and no issues. Put it in the garage and went on vacation! So now doing research. I believe mine is out of warranty now. I will find out today for sure. Now thinking about a ported blower, pulley and throttle body. Its an A10 as well, 17,000 miles. I really didnt need a project to start with two kids going to college next month!!

FoundNemo · 07-26-2021, 10:09 AM

I would ask them to verify the number of flash counts on the ECM too. Doesnt take much for someone to tune/mod these cars and put back to "stock" for appearances and reflash back if issues crop up.

Not many people respect the idea of it being potential warranty fraud to hide the mods and claim its unmodded when they break stuff, but most folks do it.

If the flash counts cant be verified in the GM systems as being done by a dealership, there's your answer and its time to go through the car with a fine tooth comb.

03-28-2020, 05:09 PM	#16
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	Try a different brand of gasoline like Shell V-power 93 or Chevron 93! __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

03-28-2020, 04:54 PM	#15
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,368	That's easy. Push it a little each day and bring it back.

08-31-2020, 05:05 PM	#23
everjeff Drives: 2020 Chevrolet Camaro ZL1 1LE Join Date: Aug 2020 Location: Acworth, GA Posts: 6	I've had my 2020 for a month with 1000 miles and just got the CEL and knock sensor replaced. Glad to see I am not alone!

07-26-2021, 09:38 AM	#25
Rext Drives: 2018 ZL1 Convertible Join Date: May 2021 Location: Kentucky Posts: 3	I have a 2018 ZL1. I had the oil pump issue at 7,000 miles and the dealer fixed it. Took it to NCM motorsports park last monday for some track time and after about three laps it shut down to limp mode. Drove it to Oreilly AP and they diagnosed it with a knock sensor code. I ended up driving it easy back home about two and a half hours with no SES light on and no issues. Put it in the garage and went on vacation! So now doing research. I believe mine is out of warranty now. I will find out today for sure. Now thinking about a ported blower, pulley and throttle body. Its an A10 as well, 17,000 miles. I really didnt need a project to start with two kids going to college next month!!

07-26-2021, 10:09 AM	#26
FoundNemo Drives: 2019 ZL1 Join Date: Oct 2019 Location: GA Posts: 573	I would ask them to verify the number of flash counts on the ECM too. Doesnt take much for someone to tune/mod these cars and put back to "stock" for appearances and reflash back if issues crop up. Not many people respect the idea of it being potential warranty fraud to hide the mods and claim its unmodded when they break stuff, but most folks do it. If the flash counts cant be verified in the GM systems as being done by a dealership, there's your answer and its time to go through the car with a fine tooth comb.

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