IAC issue
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IAC issue
I have a very strange problem. I have a 94' XLT 5.8L auto.
I am having some strange running issues and only when it is wet out. After fadt idle drops off it spits and spudders for about a minute then you here a click and it runs normal. Doesn't matter if it is cold or warm. Every time you start it. I checked for codes and a here are the codes, 12, 11, 73.
I had a EGr problem before but I fixed that and the problem persists.
I checked the voltage at the IAC and it is only 0.17VDC. If i disconnect the connector to the IAC it reads 11.8VDC. If I leave the IAC plugged in and only probe one wire and hold the other probe it gives me 10.6VDC. Sounds stupid but I noticed that. I also checked the resistance of the IAC and it reads 12.9 ohms. I also took it off and cleaned it.
I changed the TPS and it still comes up with 73. I had the battery disconnected for about half an hour and rechecked with the same code.
Can anyone shed some light on this. I'm starting to get frustrated!!!!!
Thanks
Wayne
I am having some strange running issues and only when it is wet out. After fadt idle drops off it spits and spudders for about a minute then you here a click and it runs normal. Doesn't matter if it is cold or warm. Every time you start it. I checked for codes and a here are the codes, 12, 11, 73.
I had a EGr problem before but I fixed that and the problem persists.
I checked the voltage at the IAC and it is only 0.17VDC. If i disconnect the connector to the IAC it reads 11.8VDC. If I leave the IAC plugged in and only probe one wire and hold the other probe it gives me 10.6VDC. Sounds stupid but I noticed that. I also checked the resistance of the IAC and it reads 12.9 ohms. I also took it off and cleaned it.
I changed the TPS and it still comes up with 73. I had the battery disconnected for about half an hour and rechecked with the same code.
Can anyone shed some light on this. I'm starting to get frustrated!!!!!
Thanks
Wayne
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I've been reading a bit on this site and noticed most of the 94's have a 3 digit code. Am I reading this right? Maybe I'm doing this wrong. I followed the test procedure. I will try again in the morning.
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retard
I'm a retard. I was reading the codes wrong. The codes are KOEO 121
KOER 121, 173
I've been reading about this and it seems to point to the TPS and the O2. Is this right?
KOER 121, 173
I've been reading about this and it seems to point to the TPS and the O2. Is this right?
Last edited by all4ford; Jun 8, 2008 at 10:59 AM. Reason: I'm a retard
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Well I got rid of code 121. I put the old TPS back in and tested the resistance. It seemed good. The new one is screwed. Now I just have the code 173. Might just go get a O2 sensor. I've never changed it.
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Well It is running better but has a code now 311, I had some old solinoids TAD and TAB. I tried those and cleared the codes. 311 came back again. Can this cause any running issues? It still has a spudder ater the fast idle goes down.
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