How many O2 sensors?

[movin2stereo]

Well I went ahead and changed all three.The 2 up front were easy and came right out.The 1 after the cat was a bitch to get out,I had to heat it up cherry and then it came out.I also found out the connector had a tab rotted off.The truck still runs the same.I can't wait to see it the gas milelage is better.

[BlazerLT]

Reset your computer so it can relearn faster.

[movin2stereo]

Originally Posted by BlazerLT

Reset your computer so it can relearn faster.

Yea I pulled the terminal.

[movin2stereo]

How long do you have to wait to reset the computer when you pull the terminal?I gave it a couple minutes.I came home today and the truck threw a fit.Now I'm getting codes "O2 sensor circuit low voltage"both banks 1 and 2.This truck is going to kill me!!!!!!!!!!

[dmbrisket 51]

couple minuts should of done it, should have run rough when started, computer has to get its bearings back, but it shouldnt be throwing codes at you, go get them (or do it yoruselfe if you can) ereased

[BlazerLT]

What you are probably seeing is a dirty or defective MAF sensor.

Clean the MAF filaments with TB cleaner and a gentle toothbrush and reinstall.

[movin2stereo]

I cleaned the MAF not long ago but I didn't use a toothbrush.I should've said this before.When I mash the gas,it hesitates and then goes.Then when I would let off it damn near stalls and runs rough for a bit and then evens out.Also forgot to mention after you mash the gas on and off a couple of times,a little smoke puffs when the gas is hit and then after the gas is left off.Does it sound like the MAF?I'm lost and getting pissed off again at this truck.

[rlith]

Hmmm... 2 things to check now that you mention the other stuff... TPS (Throttle position sensor) And your vac lines.

[BlazerLT]

Originally Posted by movin2stereo

I cleaned the MAF not long ago but I didn't use a toothbrush.I should've said this before.When I mash the gas,it hesitates and then goes.Then when I would let off it damn near stalls and runs rough for a bit and then evens out.Also forgot to mention after you mash the gas on and off a couple of times,a little smoke puffs when the gas is hit and then after the gas is left off.Does it sound like the MAF?I'm lost and getting pissed off again at this truck.

Yip, sounds exactly like a problem I helped a guy on with his truck.

Turns out it was the MAF sensor.

[movin2stereo]

Originally Posted by BlazerLT

Yip, sounds exactly like a problem I helped a guy on with his truck.

Turns out it was the MAF sensor.

Alright thanks for the quick response.I'll try it this weekend,maybe.If I get the cash.

[movin2stereo]

Originally Posted by rlith

Hmmm... 2 things to check now that you mention the other stuff... TPS (Throttle position sensor) And your vac lines.

I'm going to go over the vac lines once spring gets here or sooner if the MAF doesn't fix it.Thanks .