h22 Ecu question
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From: Nor Cal
h22 Ecu question
How do u usually fry ur ecu. Just askin cause thats what they said happen to my cousin's ecu when he sent it back to the dealer to get it service because his atts light was on. He didn't do it. He bought it from the dealer. Thank God he got warrraty. 
By the way, Its a 99 Prelude SH
[Modified by Si HaTcHBaCK, 11:03 AM 3/13/2002]
By the way, Its a 99 Prelude SH [Modified by Si HaTcHBaCK, 11:03 AM 3/13/2002]
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From: Toronto, ON, Canada
Re: h22 Ecu question (Si HaTcHBaCK)
The car ran fine, but the ATTS light was on and they said the ECU was fried?
On a stock car without taking out the ECU yourself or really doing something major funky with wires in the engine bay, it's almost impossible to fry the ECU. I haven't fried an ECU, yet, and I've hacked up some wiring harnesses pretty good. Even miswired a few things sometimes.
You can be pretty much guaranteed that most dealers will hand you a bullsh-t story about what went wrong when they can't figure it out themselves, especially when it concerns the ATTS unit. Most dealers know very little about it and don't want to know anything about it.
I'm guessing they just pulled the power for a few seconds to reset everything.
On a stock car without taking out the ECU yourself or really doing something major funky with wires in the engine bay, it's almost impossible to fry the ECU. I haven't fried an ECU, yet, and I've hacked up some wiring harnesses pretty good. Even miswired a few things sometimes.
You can be pretty much guaranteed that most dealers will hand you a bullsh-t story about what went wrong when they can't figure it out themselves, especially when it concerns the ATTS unit. Most dealers know very little about it and don't want to know anything about it.
I'm guessing they just pulled the power for a few seconds to reset everything.
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Joined: Jul 2001
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From: Philadelphia, PA, PBR
Re: h22 Ecu question (DirtyLude)
My ECU went bad for no apparent reason.
I have a 2000 Prelude Base 5spd. It has only header and exhaust. It has no electrical or wiring changes made to it other than an alarm that I had installed one week after I bought the car.
Last summer with about 18,000 miles on the car, I was pulling out of my driveway when, all of a sudden, the gauge cluster goes dead. I stopped the car, shut it off, and reset the ECU. I started the car up and the gauge cluster was still dead. The car still was able to run though, albeit in limp mode. The alternerator was not charging the battery either. I thought it seemed like an electrical system short somewhere or a bad VSS.
The next day I limped the car to the Honda dealer. They said that it was a bad alternator, and they had to get one overnighted from Ohio. I asked how a bad alternator accounted for the gauge cluster not functioning, and they insisted that weird things happen when the alternator goes. (They also accused the heat from my aftermarket header with no heatshield for causing the premature alternator failure... "We'll cover it under warranty this time, but if it happens again..."
)
Well next day, they get the new alternator in and install it. But of course the car does the same thing - the original alternator was fine all along. So now they think it is the ECU. But of course they don't have any, so it has to be overnighted from Ohio again.
So 3 days after I drop the car off, they put in the new ECU and everything has worked fine ever since. They sent the original ECU back to Honda for testing...
Andrew
[Modified by aklucsarits, 3:42 PM 3/13/2002]
I have a 2000 Prelude Base 5spd. It has only header and exhaust. It has no electrical or wiring changes made to it other than an alarm that I had installed one week after I bought the car.
Last summer with about 18,000 miles on the car, I was pulling out of my driveway when, all of a sudden, the gauge cluster goes dead. I stopped the car, shut it off, and reset the ECU. I started the car up and the gauge cluster was still dead. The car still was able to run though, albeit in limp mode. The alternerator was not charging the battery either. I thought it seemed like an electrical system short somewhere or a bad VSS.
The next day I limped the car to the Honda dealer. They said that it was a bad alternator, and they had to get one overnighted from Ohio. I asked how a bad alternator accounted for the gauge cluster not functioning, and they insisted that weird things happen when the alternator goes. (They also accused the heat from my aftermarket header with no heatshield for causing the premature alternator failure... "We'll cover it under warranty this time, but if it happens again..."
) Well next day, they get the new alternator in and install it. But of course the car does the same thing - the original alternator was fine all along. So now they think it is the ECU. But of course they don't have any, so it has to be overnighted from Ohio again.
So 3 days after I drop the car off, they put in the new ECU and everything has worked fine ever since. They sent the original ECU back to Honda for testing...
Andrew
[Modified by aklucsarits, 3:42 PM 3/13/2002]
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