Check engine light stay on all the time but dim. No Codes
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Junior Member
Joined: May 2015
Posts: 91
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From: Lenexa, KS
Car: 1989 IROC Z L98 G92
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27 G92
Check engine light stay on all the time but dim. No Codes
I was wondering if anyone else has had this problem. After changing all of my IP light bulbs to LED, my CEL light stays on all the time but real dim. I check for codes and none come up and light will flash like normal for the code 12 but instead of flashing on off it will flash bright to dim. Any help would be appreciated.
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
LED Sled
Thats because it takes so little current to activate the LED.
You can cure the problem with a 56 ohm resistor across the lamp socket.
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Happy Racing !
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! Drive It Like Youre Renting It !
You can cure the problem with a 56 ohm resistor across the lamp socket.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing !
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
! Drive It Like Youre Renting It !
Joined: Sep 2011
Posts: 44
Likes: 0
From: Buffalo, NY
Car: 1991 Camaro RS
Engine: 305 TBI
Transmission: Auto
Re: Check engine light stay on all the time but dim. No Codes
Had the same problem and with the air bag light also. I also put the regular bulbs back in.
Joined: Aug 2013
Posts: 4,806
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From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: Check engine light stay on all the time but dim. No Codes
Wow...the things I learn hanging around this place....