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View Full Version : 1986 Honda accord LXI code 6



SamKCMO
12-22-2023, 08:43 PM
I bought this thing for a 100 bucks under 150k been sitting 4-5yrs put new gas in it with injector cleaner and a new battery she starts right up but at idle will jump rpmÂ’s above 2k I thought it was a vaccum leak in the master cylinder cause the breaks kept getting air in em replaced it and it stopped for a lil and came back after idling for a while I have videos of the code 6 flashing and video of it idling I have no idea how to attach it
Any help appreciated tryna get this car together so my friend can have some transportation

conozo
12-22-2023, 09:13 PM
Code 6 is a problem with the coolant temperature sensor. That's one of the sensors located in the thermostat housing and it's probably got a corded plug. Unplug it and clean the contacts.

When it's not working it causes high idle.

SamKCMO
12-23-2023, 12:05 PM
Don’t know how to add a picture but here’s a link to a post which one is it? The yellow one has corrosion in it have not taken off the one on the left
https://www.3geez.com/forum/showthread.php/139073-87-Accord-LX-i-PGM-FI-light-Code-6-%28ECT-Sensor%29-Where-is-it

Oldblueaccord
12-25-2023, 08:47 PM
Don’t know how to add a picture but here’s a link to a post which one is it? The yellow one has corrosion in it have not taken off the one on the left
https://www.3geez.com/forum/showthread.php/139073-87-Accord-LX-i-PGM-FI-light-Code-6-%28ECT-Sensor%29-Where-is-it

https://www.3geez.com/forum/showthread.php/108726-TW-Sensor-Clarification

Oldblueaccord
12-27-2023, 03:59 PM
I also wanted to add if yours is a 1986 the fuel injection models were a little different as later models, as far sensors and such so keep that in mind.

SamKCMO
01-05-2024, 08:03 AM
I also wanted to add if yours is a 1986 the fuel injection models were a little different as later models, as far sensors and such so keep that in mind.
It is a fuel injected 4 door LXI here’s a video of the idle https://youtube.com/shorts/kbfqZ053X8k?si=NE8HvD_-qPGHhHdx