HELP! 89 SR5 4AF running rich. - Toyota Nation Forum : Toyota Car and Truck Forums

DragRacer383 · 03-17-2005, 09:34 PM

Just want to start by saying HI.

I have a 89 SR5 with the 4AF 1.6 w/ California emissions.
The car has started a problem with running very rich. I'm at a loss at where to start. the car has new cap,wires,rotor,plugs.
I can't really afford to start buying sensors if they aren't going to help. can someone point me in the right direction?
Thank you Glen.

T800 · 03-17-2005, 11:06 PM

Check vacuum lines. If the engine check light stays on do a code check for any sensors it may have. Should explain how to do that in your owners manual. Pick up a Haynes manual for your car to refer to. Check to see if all cylinders are rich or just #one and two.

Flashmn · 03-18-2005, 05:31 AM

Check the accelerator pump diaphragm.

fredk · 03-18-2005, 05:53 PM

make sure the choke isnt stuck closed