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well it was an easy fix. ground wire wasnt hooked up on the back of the head. wonder why nobody thought of that ;)

any ideas?

would this old reds 93 tune chip cause this?

and 1.49 with car running

ok key on ground on the batt. positive in the o2 wire at the o2 connector on top of the motor with o2 unplugged the wire going to the o2 is sending 1.52 volts

i have stated this is the third o2 sensor with the same results on the scanmaster

So any ideas on why my o2 isn't working? Can I just run a new wire from o2 to the d7 port? Could it be as simple as putting a ground strap on the turbo to the block or frame?

not sure what you mean

put the meter ground on a bolt under the dash

ok i drove the car. still 402 for o2. no cc and the service eng light came on. malfunction 13 on scanmaster. i checked the volts at the d7 pin and im getting like 1.2 volts with key on. from what i can see thats to much, any ideas on how to fix this? the car seems to have a slight miss until it...

Would that explain why my oxygen sensor isn't working?

im hoping this is stock. i have 3 aftermarket ones and i put a stock motor back in my car thanks.

lol computer sheesh

swapped an accufab reg on it and its not rich anymore. put a new o2 in it and it still is reading 402 with no cc. and no change if i unplug it. so does anybody know what wire the o2 is at the cumputer and i will ohm test it. thanks

think i found the prob. the stock regulator is spitting fuel up the vacuum line. so im guessing thats my problem and the regulator is bad

yes just swapped maf sensor. same result. what is wierd. this is a new motor that i pulled out of a junk car and it was doing the same thing in the junk car. very rich. it revs nice sounds good one its off idle but at idle it is rough and very rich

its stock and at idle. have not drove it yet. its rich as hell

plugs are gas soaked and you can smell it. all stock. it does have a hotwire kit on it

also it shows 0 cc what ever cross section means?

well guys i just got my new motor running and the scanmaster hooked up and it is really rich and the o2 read 398,402 and just flip back and forth. i swapped my o2 out of my other motor and it does the same thing. any suggestions? thanks