Question about TPS sensor

[mazdarichie]

How would the car run with a bad TPS sensor? Would it even run or would it throw a CEL? I just can't figure out why the car runs so bad after it gets up to driving temperature. I have replaced the IAC valve, EGR valve, Both o2's, WGA, Vacuum lines, Fuel injectors. Car does not throw any CEL's since I replaced the WGA but it still runs terrible! Runs fine when it is cold but once it gets to operating temp it runs awful. Idle is real irratic.

 

[jscott]

TPS should be throwing a code if it was bad, but then again I had issues with my MAF and it wasn't throwing cel....you have thrown a lot of parts at it already and i'm sure you are tired of doing that so I would just try cleaning the TPS to see if it makes a differance or not, also check the MAF sensor to see if it's dirty or anything

 

[mazdarichie]

I am sick of buying parts for this car. I have already cleaned the MAF sensor. I just ordered new coil packs. Might as well try that. Seems like this is a problem many owners have had or are having. Lots of suggestions but nobody seems to have really pinned down what is the actual cause of this. So I guess I will just keep trying. Have to smog this car soon and I need to get it running right. Been so long since it ran good that I can't even remember when that was.

 

[jumaaneface]

I am sick of buying parts for this car. I have already cleaned the MAF sensor. I just ordered new coil packs. Might as well try that. Seems like this is a problem many owners have had or are having. Lots of suggestions but nobody seems to have really pinned down what is the actual cause of this. So I guess I will just keep trying. Have to smog this car soon and I need to get it running right. Been so long since it ran good that I can't even remember when that was.

Check your fuel pressure. Mine was a faulty pump. Idle bounced around. Installed wideband and was running crazy lean. Fuel pressure was below normal even at idle. After hard acceleration shifting to neutral would almost always almost cut the car off

 

[mazdarichie]

Pump is in the tank right?

 

[jumaaneface]

Yes

 

[powderider87]

And all you have to do is remove the rear seat and there is the fuel pump just unbolt it from the tank.

 

[Spiced MSP]

maybe find someone with a scan tool that has live data streaming and look at all the sensors

 

[mazdarichie]

Is there a fuel pump kit I can get? I know there is a screen. Should it be replaced too? Just replaced the coil packs and no change.

And all you have to do is remove the rear seat and there is the fuel pump just unbolt it from the tank.

 

[powderider87]

http://protegegarage.com/398-product-398.html

That is the common upgraded fuel pump for our cars... i never understood the fuel filter in these things, i think that pump sits in a sock type filter.