check engine light

[badleyman68]

I have replaced the 2 o2 sensors on my 1994 exploder and changed plugs & wires. Why will the light still come on??
I originally had it checked and was told it was the o2 senors but the light was reset and came back on. ideas anyone???

 

[410Fortune]

You need to pull the codes, Autozone will do this for free and give you a print out of what they mean.
02 sensor codes do not always mean the 02 sensors are bad, there may be other codes with it that can help point to the real culprit.

 

[Tony H]

How does it idle?
You Air MAss could use a little alcohol rub on the two wires. Is the Throttle body Butterfly area Clean?

 

[410Fortune]

RUB??????????????????

Dont touch the sensor WIRES geesh....not even with a q tip, you can clean them with sensor safe carb cleaner just fine.

 

[Tony H]

That's the way I do it. they are thick enough. Works for me.

 

[410Fortune]

you dont want to bend them at all, which you risk doing with a q tip, thats all.
they are very delicate, so for people on the board I suggest using a good spray of cleaner from all sides.

 

[badleyman68]

went to Autozone at lunch today and the o2 code got cancelled but there is a egr valve code so I bought that to put on BUT!!!!! my egr tube has 2 holes in it and the dealer wants 86 bucks for one, any sugg. are welcome, I just dumped 2600 into this truck over the past 2 mos. (trans rebuild 1500) the rest was in front end, fuel pump , rims, shocks ect................