Sonofmayhem

where are the most common places? i can smell gas, plus i here it or something dripping into the cat after i shut off the truck.

kishotoyota

i I had a bad fuel leak on my 22r. I found the leak where the fuel pump meets the fuel lines. This is the extent of my experience so far

Sonofmayhem

sweet, it just laid about 4inches of snow down so ill check tommorrow.

Any other ideas? thanks plus did 80 trucks use oxy sensors? my truck originally had a 20r.

Sonofmayhem

bump anyone know? id like to get it fixed soon

Did 1980 trucks have oxygen sensors? with the 20r? now i have a 22r and dont know where to plug it in.

Why do i hear a liquid dripping into the cat when i turn off the truck? thanks

kishotoyota

Umm other fuel odor ideas to be check would be fuel tank overfilled, charcoal canister filter in evaporative emissions control system, vapor leaks from evaporative emissions control system

Yes the 22r has an oxygen sensor. It connects to the exhuast manifold. Should be ez to find

Not sure about the cat unless there damage somwhere that's all I can think of

Sonofmayhem

well i welded the whole exhaust system like an idiot, but i just dont know where to connect the oxy sensor, thanks.

Keep them comin.

millertime_t1

O2 sensor does not connect to the exhaust manifold -- take it to a muffler shop and the will weld a bung in your exhaust system -- cost like $15.00 --

Sonofmayhem

sweet, i think i might make my own. thanks.

kishotoyota

Actually there is an oxygen sensor in the manifold if its equipped with 1. like mine and there's 1 near the cat I believe

the_supernerd

My carbureted 22R has an oxygen sensor on the manifold. I believe that California smog trucks had O2 sensors and federal smog did not. The oxygen sensor is used for the feedback control system in California smog trucks, which have a computer controlled EBCV to control the mixture instead of a smog pump.