Running Rich
Running Rich
I think my mx is running a little bit rich, any ways I can help this?
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Re: Running Rich
Do you see black smoke coming from you exhaust pipe or black soot collecting on your rear bumper? If so, you might have a vacuum leak. Check your intake hose for cracks.<p>If no smoke or soot it's probably nothing to worry about.
Re: Running Rich
sut on the rear bumper, just above the pipe
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Re: Running Rich
If your mileage is high its more likely oil crudding up the bumper.
93 MX-3 GS- ZE, KL31 ECU, Fidanza Flywheel, CM Stage 2-R clutch, Hotshot Headers
99 Subaru Impreza RS, the new toy
91 Eagle Talon Tsi AWD *RIP*
99 Subaru Impreza RS, the new toy
91 Eagle Talon Tsi AWD *RIP*
Re: Running Rich
Yeah it does have kinda high mileage...
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Re: Running Rich
Switching to heavier weight oil might help cut it back. Since its not the correct weight oil though you maybe shortening engine life a small amount. If your car has 150,000 miles I doubt the oil would shorten it so much it would matter. If you don't mind it then stick with what your doing.
93 MX-3 GS- ZE, KL31 ECU, Fidanza Flywheel, CM Stage 2-R clutch, Hotshot Headers
99 Subaru Impreza RS, the new toy
91 Eagle Talon Tsi AWD *RIP*
99 Subaru Impreza RS, the new toy
91 Eagle Talon Tsi AWD *RIP*
Re: Running Rich
As your oxygen sensors get older they will cause the car to run richer and affect the gas mileage.
how old are the O2's
Andy P. 93 GS
how old are the O2's
Andy P. 93 GS
Re: Running Rich
About the oxygen sensor, when replacing one Im guessing the old one is really siezed in there?
Re: Running Rich
I just did The O2 sensor on My car and yah it took a hell of alot of force to get it out
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Re: Running Rich
what are you using as an intake? CAI, stock? Check the clamp at the airflow meter. If it's too tight it will distort and cause you to run rich because it's restricted from opening properly. It's free to fix so start there just to see. I spent a week trying to solve a rich running engine problem just to have my VAF torqued 1/4 turn too tight. Had I known I coulda had it fixed in 7 sec insted of 7 days.
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