2006 TSX - DIY ECT Sensor and IAT sensor replacement?
#1
2006 TSX - DIY ECT Sensor and IAT sensor replacement?
Hello all, I've been the proud owner of a shiny blue TSX since 2006.
I've just had my first check engine light come and it said Check emission system. I took it to the dealer and they said the ECT sensor and IAT sensor would need to be replaced and quoted me $646.11.
I'd like to try and do this repair myself, but the problem is I don't know what either of these two sensors look like or where they are. Could someone post a picture or instructions on where to find them? And where would be a good place to find replacements for these sensors?
I've just had my first check engine light come and it said Check emission system. I took it to the dealer and they said the ECT sensor and IAT sensor would need to be replaced and quoted me $646.11.
I'd like to try and do this repair myself, but the problem is I don't know what either of these two sensors look like or where they are. Could someone post a picture or instructions on where to find them? And where would be a good place to find replacements for these sensors?
#2
Senior Moderator
iTrader: (2)
The IAT is on the intake tube and costs ~$27 onine.
#14 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b01.png
The ECT is on the bottom of the radiator and about ~$26.
#9 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b05.png
They are easy to replace. However, I would reset the codes first and verify which one is causing a problem, as those two sensors are not directly related, unless there's a problem with the common ground connection.
#14 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b01.png
The ECT is on the bottom of the radiator and about ~$26.
#9 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b05.png
They are easy to replace. However, I would reset the codes first and verify which one is causing a problem, as those two sensors are not directly related, unless there's a problem with the common ground connection.
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Monty_With_a_TSX (07-28-2011)
#3
The exact errors Acura said the car was giving were P0128, P2185 and P0111. And they said it was one of those two sensors was not communicating with each other properly anymore. The car has been running 100% so far I haven't noticed and changes in running temperature or anything weird with the idle.
#4
The IAT is on the intake tube and costs ~$27 onine.
#14 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b01.png
The ECT is on the bottom of the radiator and about ~$26.
#9 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b05.png
They are easy to replace. However, I would reset the codes first and verify which one is causing a problem, as those two sensors are not directly related, unless there's a problem with the common ground connection.
#14 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b01.png
The ECT is on the bottom of the radiator and about ~$26.
#9 in the diagram
http://www.acuraautomotiveparts.org/...4sea01_b05.png
They are easy to replace. However, I would reset the codes first and verify which one is causing a problem, as those two sensors are not directly related, unless there's a problem with the common ground connection.
Last edited by Artbuc; 03-25-2012 at 12:05 PM.
#5
in the 24th and a half...
The exact errors Acura said the car was giving were P0128, P2185 and P0111. And they said it was one of those two sensors was not communicating with each other properly anymore. The car has been running 100% so far I haven't noticed and changes in running temperature or anything weird with the idle.
P0111 "Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem"
P0128 "Cooling System Malfunction"
P2185 "Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage"
So, P2185 likely caused the P0128, as one of the checks for it is the function of ECT #2. Trouble shooting ECT is looking to isolate loose wire then replace sensor if one isn't loose. IAT is straight replace it.
My .02, other than draining coolant, the swaps are simple and the prices are not too high...you take a chance and do it yourself and save 550 or so, but maybe not solve the problem. The dealer should discount the repair by the diagnostic cost, so the actual repair is less than quoted, but at least it should be solved. It's a toss-up.
#7
in the 24th and a half...
No, the ECT 2 sensor is a possible issue for a P0128...
Back to trouble shooting, assuming a 2007:
First check is radiator fan function...second is thermostat...third is ECU/PCM reflash...then connection check on ECT 1 & 2...failing all that, replace ECU/PCM.
Proper trouble shooting requires a HDS computer to ensure certain messages occur before the next step...sorry.
Back to trouble shooting, assuming a 2007:
First check is radiator fan function...second is thermostat...third is ECU/PCM reflash...then connection check on ECT 1 & 2...failing all that, replace ECU/PCM.
Proper trouble shooting requires a HDS computer to ensure certain messages occur before the next step...sorry.
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#8
No, the ECT 2 sensor is a possible issue for a P0128...
Back to trouble shooting, assuming a 2007:
First check is radiator fan function...second is thermostat...third is ECU/PCM reflash...then connection check on ECT 1 & 2...failing all that, replace ECU/PCM.
Proper trouble shooting requires a HDS computer to ensure certain messages occur before the next step...sorry.
Back to trouble shooting, assuming a 2007:
First check is radiator fan function...second is thermostat...third is ECU/PCM reflash...then connection check on ECT 1 & 2...failing all that, replace ECU/PCM.
Proper trouble shooting requires a HDS computer to ensure certain messages occur before the next step...sorry.
Is there someway I can tell if the ECU needs to be reflashed? That is, if I call American Honda with the VIN, can they tell me? Thanks.
#10
Cruisin'
I'm dealing with the same issue on my 06 TSX. I picked up the only sensor that Autozone carries and notice the upper and lower ECT are very similar. In the Shop manual, the lower sensor that bolts to the radiator doesn't appear to have a nipple the goes into the rat but the upper ECT does have the nipple. The duralast part # is SU5584. I know the OEM part#'s are slightly different. I don't want to drain and pull the lower sensor and it not be the correct one.
#11
Cruisin'
Here's some pics of the Autozone part and the terminals on my sensor in the radiator.http://imageshack.com/a/img706/7332/4rox.jpg
http://imageshack.com/a/img854/1346/pzwv.jpg
http://imageshack.com/a/img59/529/enm8.jpg
http://imageshack.com/a/img854/1346/pzwv.jpg
http://imageshack.com/a/img59/529/enm8.jpg
#12
Cruisin'
#14
Cruisin'
I returned the Duralast sensor as when I checked it with my meter the reading was closer to the ECT-1. Purchased the ECT-2 from OEMAcuraparts.com and installed it this weekend. Only took about 5 minutes to pull the sensor and replace. Torqued to specs and refilled the radiator. Draining the system took about 15-20 minutes. Drove the car for two cycles and it cleared the code on it's own. The terminals on my sensor were fine but the ohm reading was only about 45 ohms.
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