engine check light
#1
hiya
i have a 94 WRX and the check engine light comes on the dash very ocasionally maybe once every 3 weeks for 10 or 15 seconds
does anyone know what this means it still runs fine even when on
cheers
stu
i have a 94 WRX and the check engine light comes on the dash very ocasionally maybe once every 3 weeks for 10 or 15 seconds
does anyone know what this means it still runs fine even when on
cheers
stu
#7
Scooby Senior
Join Date: Oct 2000
Location: Zurich, Switzerland
Posts: 3,105
Likes: 0
Received 0 Likes
on
0 Posts
Sorry, but resetting the ecu is a bad idea! You get the CEL for a reason - first thing you should do is find out why
Maybe you're getting a MAF failure CEL - this is causing your car to det due to lean mixture, and the ecu is retarding the ignition to protect engine. You've just reset ecu - ecu is no longer retarding...and you get det again. This is a bit extreme, but it can happen. If you're car seems more powerful following the reset, I'd be worried
You can join the black under-dash (by steering column) connectors and the ecu will flash the stored error codes at you in long-short sequences. Do a search - there's lots of info here.
Richard
Maybe you're getting a MAF failure CEL - this is causing your car to det due to lean mixture, and the ecu is retarding the ignition to protect engine. You've just reset ecu - ecu is no longer retarding...and you get det again. This is a bit extreme, but it can happen. If you're car seems more powerful following the reset, I'd be worried
You can join the black under-dash (by steering column) connectors and the ecu will flash the stored error codes at you in long-short sequences. Do a search - there's lots of info here.
Richard
Thread
Thread Starter
Forum
Replies
Last Post
TylerD529
Lighting and Other Electrical
5
20 September 2015 12:10 PM