Jeeper Posted February 15, 2003 Report Share Posted February 15, 2003 thanks for the help on the DIS firing order! Now I have discovered that there is a hesitation in accelration. new plugs, wire and MAP sensor. What do you all think this could be? Always thanks for the help! Aaron Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted February 15, 2003 Report Share Posted February 15, 2003 is it giving any codes?? You might have a vacuum leak somewhere, plenum gasket is good place to look. Or, your TPS might need resetting. Is your Cat old?? There is a number of things that could cause that. But TPS would be a good place to check. Robby Quote Link to comment Share on other sites More sharing options...
Jeeper Posted February 15, 2003 Author Report Share Posted February 15, 2003 i will check the codes. i was saying the MAP was bad so i replaced that and cleared the codes, best i knew how. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted February 15, 2003 Report Share Posted February 15, 2003 the MAP will definitely do what you were describing. Actually, if the MAP is really bad, the car will die after it hit about 175*. That is becuse, that is when the MAP starts assisting in air/fuel mixture and idle rpm. What about your IAT sensor on your airbox?? Check that too. Let me know what the codes, if any are, I have a couple more ideas, if there are no codes. Hope I can help you out Robby Quote Link to comment Share on other sites More sharing options...
Jeeper Posted February 15, 2003 Author Report Share Posted February 15, 2003 I am at work and i am going to get the codes on my break. I remember something about a paperclip on my old firebird. Quote Link to comment Share on other sites More sharing options...
Jeeper Posted February 16, 2003 Author Report Share Posted February 16, 2003 Ok, i have either a code 13 or 23.. does that make since? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted February 16, 2003 Report Share Posted February 16, 2003 yeah, code 13 is your O2 sensor. "check wiring and connectors from O2 sensor or replace it. code 23 is MAT or IAT sensor. It says "check MAT/IAT sensor wiring and connectors for an open circuit, replace MAT/IAT. I would try the MAT/IAT first because it is easier to get to. But your prob. sounds like the O2 sensor. Its on your rear exhaust manifold, close to were it joins the front manifold on the side near the air box. I think thats going to be the prob. After a lot of miles O2 sensors go out a lot on these motors. And the MAT being messed up wont be a noticeable prob. Hope that gets ya goin, if you need anything else, give me a holla Robby Quote Link to comment Share on other sites More sharing options...
Jeeper Posted February 16, 2003 Author Report Share Posted February 16, 2003 Now it is reporting a 33 again!!!!!!! EEK! What could this be? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted February 16, 2003 Report Share Posted February 16, 2003 Code 33 is the MAP sensor. Check your vacuum line going into the back of it. If that is not it, check the electrical connector to the MAP. Your last option on the MAP is to replace the entire thing. Sorry, man, its pretty easy to change though, on the back of your plenum. Hope you get it running. Robby Quote Link to comment Share on other sites More sharing options...
Jeeper Posted February 18, 2003 Author Report Share Posted February 18, 2003 the MAP sensor still is not working after i replace it.. any other idea's? also does anyone have a vaccume diagram for the 3.1L? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted February 18, 2003 Report Share Posted February 18, 2003 The vacuum line that runs from the MAP sensor runs down and I thinkg attaches near the TB, or goes down into the intake manifold. Follow that as far as you can you may have a break in the line somewhere, or a bad connection to wherever it goes in. If its still reading Code 33, then check the connection from the MAP to the ECM. Thats about all you can do if it still says code 33. I dont know where you could get a vacuum diagram. Robby Quote Link to comment Share on other sites More sharing options...
Frankzen Posted March 5, 2003 Report Share Posted March 5, 2003 thanks for the help on the DIS firing order! Now I have discovered that there is a hesitation in accelration. new plugs, wire and MAP sensor. What do you all think this could be? Ever figure it out ? Quote Link to comment Share on other sites More sharing options...
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