Hello
I have 2019 5.7 with cai, Lt headers catless, dual exhaust
The problem in my truck the check engine light blinks 4 times in specific situations especially in the mid-afternoon when it's extremely hot weather 116f when I accelerating in hill or In the event of strong wind hitting the front of the car
However, I used the in tune to see
what the codes say unfortunately Nothing appears
Happens again and I was lucky I was data logging
When I use the data viewer to identify if there is any knock, attached the log
i used to know the old format where the knock was classified as
ST knock
LT knock
Currently I couldn't understand any thing its referred to the following;
Knock
Knock mv 1
Knock mv 2
Can any one explain the differences ?
I attached the log with a picture.
Help - Check engine blinks
Moderator: sohfast94
Help - Check engine blinks
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- mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: Help - Check engine blinks
blinking CEL is generally from misfires, and if you have headers you likely need a custom tune to dial them in.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
Re: Help - Check engine blinks
Sounds bad !
The truck already has a custom tune
Also, I checked with the tuner saying We went out and tested it every thing just fine
That's wired the problem it only occurs when the weather is extremely hot rest of the day it's run normal
One more thing
I didn't understand the new format of knock sensors, how can I know the long term and short term knocks
I have 3.711 in knock 2 Is that bad?
- mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: Help - Check engine blinks
thats more than ideal, most tuners use the knock sensor voltage to determine whats going on rather than the ST/LT knock counts.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
Re: Help - Check engine blinks
Whats the normal numbers for knock 1,knock2 ?
If data log has no issues why the engine misfiring ?
Below more same log with more PIDs fyi maybe you find something
If data log has no issues why the engine misfiring ?
Below more same log with more PIDs fyi maybe you find something
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Re: Help - Check engine blinks
you should add the Misfire parameters to the logging setup and do a new log...
06MonteSS / DiabLew Tune
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
Re: Help - Check engine blinks
Not listed !
I cant find it not sure why i m getting so few pids.
I cant find it not sure why i m getting so few pids.
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- mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: Help - Check engine blinks
try streaming it straight to dataviewer.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
Re: Help - Check engine blinks
FYI
SOLVED
I have custom y pipe. Unfortunately the Y is too restrictive and designed wrong
SOLVED
I have custom y pipe. Unfortunately the Y is too restrictive and designed wrong
- mikel
- Posts: 57793
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: Help - Check engine blinks
that'll do it.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
tech@diablosport.com