Ecu - Honda Prelude Forum

red2010_2008 · 10-31-2009, 02:15 PM

hey guys i have a 92 honda prelude sohc f22, i was wandering how you can tell if your ecu is going bad? can anyone help?

Thanks

spin_r_g · 10-31-2009, 02:49 PM

Where's your built h23 or h22 or whatever motor you were putting in it?

jsmooney · 10-31-2009, 03:52 PM

what are your symptoms?

vansnxtweek · 11-01-2009, 10:01 AM

I am wondering if you could be having the same problems as me..random dummy lights coming on?

red2010_2008 · 11-01-2009, 11:05 AM

No, I would be driving around and my spedometer and rpm would bounce down to 0 then back up to the speed i was going, and my temp and gas guage flickers.....

red2010_2008 · 11-01-2009, 11:06 AM

Also the Cd Player would go off and then pop back on

red2010_2008 · 11-01-2009, 11:15 PM

Also noticed my headlighs will flicker a lil bit like a twitch, then i go to hit my brights at the same time it does it and the speedo and all the will drop and etc, like i already mensioned.....hmmm can anyone help?

G_Loc · 11-02-2009, 05:49 AM

Sounds like a problem with the charging system. Check your grounds and voltage at the battery with the car on

red2010_2008 · 11-02-2009, 07:23 AM

i jus tightend the positive terminal on my battery the other day and it still does it, not as much but wat else can i check?

G_Loc · 11-02-2009, 07:38 AM

Check the voltage at the battery with the engine running

jsmooney · 11-02-2009, 08:11 AM

check the amps on the battery. run it by autozone and get them to test the alternator. it sounds like it's a charging system problem or a grounding problem. it's probably a grounding problem...

vansnxtweek · 11-02-2009, 04:15 PM

Ya I'll have to agree with the others..this sounds more like a charging system problem. I have got to find someone else w/ the same problem as me haha..its random as heck.

Tee-Dot · 11-02-2009, 04:39 PM

I thought you sold this car.

spin_r_g · 11-02-2009, 05:00 PM

Quote:

Originally Posted by Tee-Dot

I thought you sold this car.

It would have been easier to sell it since he has so many problems. On the other hand if he built his h23 or h22 and swapped it he wouldn't have these problems. He wants to buy all these parts before he paints the car too but next thing you know we'll hear a question about painting.

JAJAJAJAJA

red2010_2008 · 11-03-2009, 08:47 AM

man f$%@ off, okay thanks for the help (vansnxtweek,jsmooney) so how would i know if its a grounding problem?

red2010_2008 · 11-03-2009, 08:48 AM

didnt sell the car tee-dot, would love to sell it! but dont want to now, lol had it since i was 16

jsmooney · 11-03-2009, 08:52 AM

first, check and make sure the ground from your battery to the trans is connected. when in doubt, take it off and sand/grind the contacting surfaces and make sure everything is nice and intact. It may be a bad ground inside the car or something since it's the electronics. It may be as simple as the battery cable. I had an issue with mine way back in the prelude days, but it wasnt the same as yours. It definitely doesnt hurt to check

I'll look in the helms for the grounding locations. I bet it's a bad ground. If it starts fine, I doubt it's the battery. It could be the alternator, but unlikely too if it works fine.

How's KY? Have you found the place to by Kentucky Jelly yet?

Tee-Dot · 11-03-2009, 08:56 AM

Quote:

Originally Posted by red2010_2008

didnt sell the car tee-dot, would love to sell it! but dont want to now, lol had it since i was 16

'Since you were 16' doesn't mean much, since I don't know how old you are.

jsmooney · 11-03-2009, 08:59 AM

I have had several cars in the past year. I wish I would have kept my prelude since I was 16. 8 years in the car....now I'm in a accord sedan

Tee-Dot · 11-03-2009, 09:08 AM

I'm glad I don't still have the car I drove at 16.