Crazy ASR light!
Thread Starter
12 Second Club
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Joined: Mar 2007
Posts: 916
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From: Coffeyville, Ks
Crazy ASR light! My asr light randomly comes on and goes off. If it comes on by itself i can't manually turn it off. My check engine light is on for tps but i was told that i just need to have the tune adjusted due to the 90mm throttle body. Anyone else have this problem and what did you do. I posted something similar like this before and didnt get any replies. Some help would be appreciated. Thanks
mine will do something close to that when i hit the gas hard around a corner all my lights come on abs, tracktion control, and service vehicle. i think it is crushing the sensors or wires. it goes away after i restart
TECH Fanatic
Joined: Feb 2004
Posts: 1,259
Likes: 0
From: Lexington, KY
Mine was doing the same after the motor mods below before I tuned it and in the early stages of tuning. Now that my tune is pretty close it doesn't do it anymore. Not sure what causes it though.
TECH Regular
Joined: Aug 2004
Posts: 443
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From: Tyler, TX.
Dont waste money on parts, they are just fine i promise. U need to go and edit your min and max on the P0121 code. Ur MAP sensor is recording more air coming into the motor that the TPS sensor is "allowing". Bigger cams, intakes (as in your case) will cause this light. Set the P0121 Error Max Map to 100 kpa and the P0121 Error Max Map to 0 kpa. Problem solved! 
P.S.- Vaticano you have a different problem. Only refer to my post if u are throwing P0121 which im sure ur not.
P.S.- Vaticano you have a different problem. Only refer to my post if u are throwing P0121 which im sure ur not.
The TPS and ASR system go hand in hand. If there's a problem with the TPS, the PCM will automatically turn off the ASR because it will not function properly. Once you get the tune adjusted for the larger TB, this problem should go away.
EDIT: I'm the slowest typer in the world. 01'WS6 hit the nail on the head.
EDIT: I'm the slowest typer in the world. 01'WS6 hit the nail on the head.
