I searched, but to no avail - ecu question.

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04-09-2007, 12:01 AM

theBrewMeister

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Join Date: Mar 2007

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Posts: 45

I searched, but to no avail - ecu question.

Yeah, I know, I know, everyone has a question about the damn ecu. I was just curious as to how you know your ecu reset. After adding my exhaust system I pulled the back-up fuse (7.5) for a min or two with the key off. Then, i started her up and let her idle for about 10 mins. And so my question: Is there any signal, i.e. flashing light, dukes of hazzard horn tone, anything that indicates that the ecu did in fact reset and relearn. I'm sure that having some fancy peice of equipment would tell me but I do not work in a garage and have no access to it. Do I want to go to auto zone? No. Thanks!

04-09-2007, 12:19 AM

03Sleeper

Been Around A Long Time Member

Join Date: Jun 2006

Posts: 1,969

RE: I searched, but to no avail - ecu question.

Ummm....disconnect the battery. Usually, just unscrew the negative terminal. Resetting the ECU is like wiping the memory of someone so it thinks it came with all your aftermarket parts. Trickery and deception are a tuner's best friend...when battling the ECU.

04-09-2007, 02:48 PM

TexasHonda

Super Moderator : And A Texan

Join Date: Feb 2007

Location: Katy, TX

Posts: 9,652

RE: I searched, but to no avail - ecu question.

Quote:

ORIGINAL: theBrewMeister

Yeah, I know, I know, everyone has a question about the damn ecu. I was just curious as to how you know your ecu reset. After adding my exhaust system I pulled the back-up fuse (7.5) for a min or two with the key off. Then, i started her up and let her idle for about 10 mins. And so my question: Is there any signal, i.e. flashing light, dukes of hazzard horn tone, anything that indicates that the ecu did in fact reset and relearn. I'm sure that having some fancy peice of equipment would tell me but I do not work in a garage and have no access to it. Do I want to go to auto zone? No. Thanks!

Your ECU reset procedure will work also. There is no feedback mechanism in the car to indicate an ECU reset other the the Check Engine Light. If it was On, it will be off when you reset. You could test for codes and determine that no codes are present, but you already know that when CEL is off.

BTW, what was nature of your repair? New catalytic converter, O2 sensor to repair a trouble code?

Good Luck

04-09-2007, 02:57 PM

poser_pilot6

Unregistered

Posts: n/a

RE: I searched, but to no avail - ecu question.

You should be good to go, Brew. Thats the same method I used on mine, and I have a 94 LX also. I reset after I cleaned out my EGR ports, and it reset the CEL.

By the way, love your avatar. Its even funnier to me, because I have a Honda, and my wife has a Nissan Maxima lol.