I've not worked on fi engines before. I was driving '81 Bronco, 4WD carbureted until now, (300,000miles) but I'm a fair mechanic.
Just bought this fine machine; 4DR 2WDAuto, 302V8,
The check engine light is on, I turn it off, it comes back on.
Codes PO340 (Pos A circuit sensor bank 1) and PO402 (EGR flow excessive) I know it's running rich because there is carbon on the tailpipe.
It doesn't run too badly nor stall. I can feel a little roughness in the engine. Gas mileage is 12/14mpg, which is, a bit low I think.
Would appreciate any help in diagnosis as well as the physical location of the EGR valve, pfe, and pvc and such. There is so much stuff crammed into this engine compartment I can't see much.
Thursday, April 19th, 2007 AT 1:58 PM