EEC-IV won't talk to Equus 3145
#1
EEC-IV won't talk to Equus 3145
Hey guys I just bought a 93 Ranger XLT with a 2.3L. It is sooting up the plugs and and I need to check for codes. So I bought the Equus 3145 code reader and followed ther steps to pull the codes from the EEC, but I can't get the EEC to talk with the Equus reader.
I checked for fuses blown after reading another thread about a related repair, but found none blown. I guess my first question would be: Does the EEC Test Port Connecter have any (+) voltage to any of the terminals? My tech hunch says it should because the test can be done manually with a jumper wire, so I'd think one of the terminals is hot - Need to confirm though because none of mine are hot.
What should I start out looking for to solve this initial problem - eventually I hope to get on to checking for some codes...
Thanks
I checked for fuses blown after reading another thread about a related repair, but found none blown. I guess my first question would be: Does the EEC Test Port Connecter have any (+) voltage to any of the terminals? My tech hunch says it should because the test can be done manually with a jumper wire, so I'd think one of the terminals is hot - Need to confirm though because none of mine are hot.
What should I start out looking for to solve this initial problem - eventually I hope to get on to checking for some codes...
Thanks
#2
RF Veteran
iTrader: (1)
OBD1 is different, I don't think there is 12v at the test port.
This is a page that shows how to read OBD1 codes with a meter or test light: Ford Ranger - Testing EEC-IV Equipped Engines
If there was 12v at the test port then meter or test light would use that instead of battery.
I am just guessing based on that web page
Does the check engine light(CEL) come on when key is turned on and then go off, if not there could be a power issue with the computer
This is a page that shows how to read OBD1 codes with a meter or test light: Ford Ranger - Testing EEC-IV Equipped Engines
If there was 12v at the test port then meter or test light would use that instead of battery.
I am just guessing based on that web page
Does the check engine light(CEL) come on when key is turned on and then go off, if not there could be a power issue with the computer
#4
RF Veteran
iTrader: (1)
#5
Just don't want to blow the EEC powering it incorrectly!!!
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karrbass4life
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01-28-2009 11:24 AM