Whats the odds on a iac valve sticking open giving me a code33 when the map could poss. be good.

 

Anybody out there fight the same type problem no acceleration but will start and idle

 

First of all, do a search, there has been more posting about the 33 error code than any other. Secondly, what car do you have? Are we supposed to guess?

 

91 rs v6 3.1 with almost everything new good fuel psi new chip that i put in today now starts and runs like it is having the timing retarded no change since new chain passed smog etc.

 

Well, I did not know that '91 V6s could get a 33 error code. Just about everything written about the 33 error code are MAF cars like mine.

 

On the 3.1L V-6 error code 33 equates to either the MAP or Low Manifold Pressure. If you know for sure that your MAP is good try looking for leaks in the manifold gaskets or hoses. There are many vacuum hoses that could cause this code.

 

its also map code stating to much air thats what makes me wonder about the iac i had it apart and tried a new one but that was before some other things but it ran fine passed smog the day I tried for the first time to give it some real gas under load going up na hill and from then on it started the diying routine and had to wait for it to cool down to make it home

 

thank you but no leaks in this one I believe its a comp. prob. for sure

 

Unless of course the iac valve can stick open and give you that much headache

 

if your iac is stuck open you will hear it hissing constantly. Not sure about your vehicle but I can stick my hand over the iac opening on my 88 350. If you can plug the air inlet of the iac then you will know for sure if its stuck open because it will stop hissing and might stall.