Running very Rich
Thread Starter
Racer
Joined: Apr 2002
Posts: 466
Likes: 0
From: Payson AZ
Running very Rich
I just bought this 87 roadster and have noticed that it runs very rich. Where should I start to look? I'm an old mechanic and have checked the plugs, etc...all seem fine...p.s. starts are very long...could this be the cold start injector? I have multimeter and a few other test pieces but, I thought you folks could possibly steer me in the right direction as I am sure some of you have been there! Don't have any decent manuals yet but, am in process of getting some...Anyone know where to get or if repair/electrical CDs are available for this model.
TIA,
Bill
87 Vette Roadster
86 635 CSi
55 Doretti
And a couple of Chevy Trucks
TIA,
Bill
87 Vette Roadster
86 635 CSi
55 Doretti
And a couple of Chevy Trucks
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: Running very Rich (BCinPhx)
Get a scanner hooked up to it. Find out how bad it is. From there you will know if the O2 sensor is working properly or not.
If you opt not to do the scanner, I would first replace the O2 sensor. Only 40 bucks. It probably needs one anyways.
If you opt not to do the scanner, I would first replace the O2 sensor. Only 40 bucks. It probably needs one anyways.
Drifting
Joined: Aug 2000
Posts: 1,251
Likes: 0
Re: Running very Rich (BCinPhx)
I bet its the O2 sensor.DOnt get one from NAPA
There about 50 bucks from Chevy. :chevy
You could find some one with a scanner.they work miracles. :blueangel:
Do you have any codes?
A code 44 means lean,(stuck O2)which makes the computer tell the injectors to dump more fuel.
Goodluck
There about 50 bucks from Chevy. :chevy
You could find some one with a scanner.they work miracles. :blueangel:
Do you have any codes?
A code 44 means lean,(stuck O2)which makes the computer tell the injectors to dump more fuel.
Goodluck
