My check engine light came on in my 95 4runner and according to the flashing code I got using the diagnostic box it came up "code 25 - air/fuel ratio rich". Is there a way to tell rather it is the 02 sensor or a bad injector? It hesitates alot when accelerating and is shaky when idling.
Thanks for any help you can give, Keith
Its seeing O2 sensor voltage remaining too high. It has a fuel leak or something. Now if you get a code 26 with it, you've got trouble.
Oops, it's LEAN, not RICH. Which is it referring to, the air is lean or the fuel is lean?
-Keith
Ah heck, I should of known that, the 26 is rich. Well, I'd look for a vacuum leak or a dead or dying o2 sensor.
Rich means there's too much fuel in the mixture.
bearman
Its a signature file and not part of my post, so ignore it and press on. If you'll read my post, I actually answered the question. Must be a newbie, dont understand what a signature file is?
Fred, whats your whining have to do with his code 25? Try answering the question instead of whimpering.
Its only 3 days old now. ;-D
You too!
MDT, I like your new tag line, funny but true. It also took less time than it did for Bill to figure out what "have sex:" meant. :-D davidj92
I dont think he has figured that out yet! ;D
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