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Check engine light

Tiny
DANNY1420
  • MEMBER
  • 1992 CHEVROLET SUBURBAN
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 145,234 MILES
I changed my oil I change the oil filter, I change the spark plugs, I change the spark plug wires, and I change the air filter. Truck is doing better. But when I am on the freeway usually is when this happens. I will be driving maybe at fifty miles an hour I will punch the gas pedal to pick up more speed, the check engine light will come on. Usually does not turn off until after I turn off the truck and turn it back on. I cannot afford to take it to a mechanic shop to have them put it on OBD1 to help me figure out why it keeps doing that. My question is what could it be that would make the check engine light come on after I punch the gas pedal? Because just driving around town throughout the day does not do it.
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Sunday, September 17th, 2017 AT 10:31 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,494 POSTS
There are literally hundreds of codes that can turn on the CEL. My guess is you are having a misfire event but without getting it scanned you do not have a starting point.

Being it is a 1992 you do not have to pay to get it scanned. You can DIY. You need a simple piece of wire stripped on the ends and a piece of paper to write the codes on. Then post what you get here.

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
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Monday, September 18th, 2017 AT 1:22 AM

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