5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

KOER code 21...ECT sensor

Reply Subscribe

Search this Thread

Old

04-21-2009, 01:57 PM

#1

camaroeater

4th Gear Member

Thread Starter

Join Date: Oct 2007

Location: Phoenix, AZ

Posts: 1,219

Default

KOER code 21...ECT sensor

I ran KOER twice, the first time I got codes 21, 94, 44, 31. Second time i got 94, 44, 31. Should i ignore code 21 since it did not appear in the second test. The temp gauge was 1/8 way up before first test, its about 80* out, so it should of been close to operating temp.

Ignore rest of codes=smog devices deleted

camaroeater is offline

Reply

Old

04-21-2009, 02:07 PM

#2

Joel5.0

5th Gear Member

Join Date: Jan 2006

Location: Puerto Rico

Posts: 3,926

Default

Yep.... ignore it..... coolant temp needs to be >170°F for that code not to show during a KOER.

Joel5.0 is offline

Reply

Old

04-21-2009, 02:35 PM

#3

camaroeater

4th Gear Member

Thread Starter

Join Date: Oct 2007

Location: Phoenix, AZ

Posts: 1,219

Default

ok, thanks man...

camaroeater is offline

Reply

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

Clear codes on '94 sn95

BOB ROME

5.0L (1979-1995) Mustang

3

07-26-2023 01:54 PM

Snow performance stage 2 MAF boos cooler install

jwog666

Pipes, Boost & Juice

11

12-27-2021 08:09 PM

Please help! 10 Check engine codes

mrtrodonet

V6 (1994-2004) Mustangs

3

09-19-2020 03:12 PM

Dathan

V6 (1994-2004) Mustangs

4

10-05-2015 05:52 AM

I should've known better

ChampInSD

5.0L GT S550 Tech

13

10-02-2015 04:55 AM

Tags

21, 50, code, koer, mustang

Reply Share

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 06:01 AM.