EGR Valve Temperature Sensor unplugged
#1
EGR Valve Temperature Sensor unplugged
Hi all! I'm new here.
I bought a 1999 Camry in January and it's been having terrible gas mileage. It has been reporting the P0401 OBD-II Trouble Code, Insufficient EGR Flow. I go to remove the EGR pipe to clean it and find the EGR Valve Temperature Sensor unplugged!
However, I cannot find where the wire should plug into. It's got a two-prong male plug. Could anyone please help me locate its socket?
Thank you in advance.
I bought a 1999 Camry in January and it's been having terrible gas mileage. It has been reporting the P0401 OBD-II Trouble Code, Insufficient EGR Flow. I go to remove the EGR pipe to clean it and find the EGR Valve Temperature Sensor unplugged!
However, I cannot find where the wire should plug into. It's got a two-prong male plug. Could anyone please help me locate its socket?
Thank you in advance.
#5
Eureka!
I found the temp sensor socket!
I had to remove all these air parts:
It's so strange, because I examined the socket next to it several times, but didn't see it until I removed the box on the right side of the photo. What is that, BTW?
Thank you for your help. I couldn't have found it without your help. I was getting very frustrated and wasn't sure what I was going to do.
I had to remove all these air parts:
It's so strange, because I examined the socket next to it several times, but didn't see it until I removed the box on the right side of the photo. What is that, BTW?
Thank you for your help. I couldn't have found it without your help. I was getting very frustrated and wasn't sure what I was going to do.
Last edited by Craig Lance; 05-05-2014 at 09:33 AM.
#8
Great job! Glad to help.
The grime is most likely from the engine. The PCV system has a hose running from one valve cover to the large air intake hose. This routes internal engine gases into the engine to be burned.
Some grime is normal. There are numerous internet posts on how to clean the throttle body. Use only chemicals designed for throttle body cleaning (safe for plastics) as the IAC valve is plastic.
The grime is most likely from the engine. The PCV system has a hose running from one valve cover to the large air intake hose. This routes internal engine gases into the engine to be burned.
Some grime is normal. There are numerous internet posts on how to clean the throttle body. Use only chemicals designed for throttle body cleaning (safe for plastics) as the IAC valve is plastic.
#10
Can use MAF cleaner as safe for plastics.
Spray it on, let it soak a little, then scrub what you can with a tooth brush, etc. Wipe off grime with paper towel, etc.
Once clean as possible, start engine and get what is left using spray having engine suck in fluid and grime. Engine will bog down with spray thus give it some gas via the throttle pulley.
Can also clean the IAC valve, the intake is rectangle opening ahead of throttle plate.
Lots of internet posts on cleaning throttle body and IAC valve.
Spray it on, let it soak a little, then scrub what you can with a tooth brush, etc. Wipe off grime with paper towel, etc.
Once clean as possible, start engine and get what is left using spray having engine suck in fluid and grime. Engine will bog down with spray thus give it some gas via the throttle pulley.
Can also clean the IAC valve, the intake is rectangle opening ahead of throttle plate.
Lots of internet posts on cleaning throttle body and IAC valve.
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