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Auto repair


Sent to Car Experts July 08, 2006 6:58 p.m.
1990 Nissan Pickup, KA24E engine, 2.4 Liter, D21 Chassis.

Running a self diagnostic test on PCU returns an error code of 41 which points to the Air Temperature Sensor.

How important is this sensor for fuel economy and engine performance? Where is it located? How difficult is it to change for a backyard mechanic?

Thanks in advance,

Gary

Optional Information:
1990 Nissan D21 KA24E

Already Tried:
The Nissan dealer in our area. They are incompetent.
Customer (name blocked for privacy)
Status: Closed   Value: $9   
Answer
July 08, 2006 7:12 p.m. (14 minutes and 12 seconds later) 		REPLIED Check Mark
The air temperature sensor is extremely important for fuel economy. Just about anybody that can handle tools can do this. It will be either plugged into the air filter housing or into the intake duct between the air filter and motor. It looks like thisImages available only to Customers.
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH
Reply to BOBBY
Sent July 08, 2006 7:27 p.m. (14 minutes and 52 seconds later)
I am checking my engine for the location of the Air Temp Sensor. If I can find it I will accept your answer.
Customer (name blocked for privacy)
Answer
July 08, 2006 7:30 p.m. (2 minutes and 23 seconds later) 		REPLIED Check Mark
Okay. I it is most likely to be in the air filter housing.
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH
Reply to BOBBY
Sent July 08, 2006 8:00 p.m. (30 minutes and 16 seconds later)
Bobby, I found the part. It was on the underside of air filter housing. someone had cut the wires. The only part left intact was the part screwed to the housing, Now, when I get the new part, all I have to do is fgure out were to connect (plug it in at).

Thank you! Isn't the Internet wonderfull.

Gary
Customer (name blocked for privacy)
Answer
July 08, 2006 8:01 p.m. (1 minute and 22 seconds later) 		ACCEPTED Check Mark
Is there any wiring left down there?
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH
Reply to BOBBY
Sent July 08, 2006 8:09 p.m. (8 minutes and 11 seconds later)
It appears as though the wires and the plug have been cut off flush with the bottom of the sensor. I will need to determine were to plug the new one it in at.
Customer (name blocked for privacy)
Answer
July 08, 2006 10:55 p.m. (2 hours and 46 minutes later) 		REPLIED Check Mark
There should be a wiring harness near there. You may have to cut into it to find the wires. You may also need a new connector if there is not enough there to splice into. If you need more help let me know.
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH
Reply to BOBBY
Sent July 08, 2006 11:22 p.m. (26 minutes and 20 seconds later)
From the Sensor picture, if you look at the right side of the picture, that is the sensor that is still attached to my air cleaner assembly. The pigtail and plug are gone. In the engine compartment, near the carb, is an open receptacle that looks like the right one, Oddly enough, it is capped with a removable cover. It may or may not be the correct line wire. I guess all I can do is order the sensor and hope I can figure out were it plugs in at.

Thanks for the help,

Gary
Customer (name blocked for privacy)
Answer
July 08, 2006 11:24 p.m. (2 minutes and 36 seconds later) 		REPLIED Check Mark
It may be it. Just remember that the wires should reach pretty freely.
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH
Reply to BOBBY
Sent July 08, 2006 11:32 p.m. (7 minutes and 30 seconds later)
Thanks again Bobby. Did you get paid for answering my question? I did click submit.
Customer (name blocked for privacy)
Answer
July 08, 2006 11:42 p.m. (9 minutes and 58 seconds later)
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
PictureBOBBY  -- Technician/ Service Advisor -- 100% Positive Feedback on 997 Car Accepts
ASE MASTER CERTIFIED, CALIFORNIA EPA AIR CONDITIONING CERTIFIED, AA DEGREE AUTOMOTIVE/DIESEL TECH

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