help with codes
New User
Joined: Nov 2006
Posts: 15
Likes: 0
From: Mount Gilead ,Ohio
112 - ACT sensor circuit grounded or reads 254<deg>F
122 - TP sensor circuit below minimum voltage
542 - Fuel pump secondary circuit failure:PCM to ground
Those are what the codes are I'm not the best on diagnosis when it comes to all of the sensors and electrical systems.There's what they are.Maybe some of the other guys on here or someone you know can help the rest of the way.Hope that helps some.
Ryan
122 - TP sensor circuit below minimum voltage
542 - Fuel pump secondary circuit failure:PCM to ground
Those are what the codes are I'm not the best on diagnosis when it comes to all of the sensors and electrical systems.There's what they are.Maybe some of the other guys on here or someone you know can help the rest of the way.Hope that helps some.
Ryan
New User
Joined: Nov 2006
Posts: 15
Likes: 0
From: Mount Gilead ,Ohio
Try cleaning the ACT(air charge temp. also called intake air temp) sensor.To check it turn the key on,unplug the sensor and measure how much voltage is being sent to it.Should be about 5 volts.Then check the resistance on the pins on the sensor.With the engine cold it should be at a high resistance.Let the engine warm up and check the resistance again and it should be lower.If it isn't I'd replace the ACT sensor.The throttle position sensor I don't know if theres much to do with that.You can check it though by back probing the connectorput the ohm meter on the ground and signal wires with the key on engine off and it should have 0.50-1.0 volts at idle position.Rotate the throttle to wide open and it should go up to 4.0-5.0volts.If it doesn't you may need a new TPS.As far as teh secondary circuit on the fiel pump I'm not sure.I hope some of this helps.
Ryan
Ryan
