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ECU Code 12
Posted: Wed Apr 16, 2003 2:12 pm
by lenm555
Need some help guys....
I have been trying to sold a hesitation problem for ages now where the power feels 'flat' sometimes when on boost. I took the car for a hard drive tonight and it was hesitating badly and then it decided it wouldn't boost above 8 psi.
I pulled over and did an ECU check and it came up with a code 12 (Starter Switch - Abnormal signal emitted from starter switch). How could that be associated with my hesitation problems?
Posted: Wed Apr 16, 2003 3:15 pm
by vrg3
The starter switch, I believe, is the line going to the ECU that tells it the starter is cranking the engine. I guess if that line is giving intermittently wrong readings (like it says you're cranking the engine when you're just driving normally), the ECU could start to act weird, but if it throws a CEL for the switch, it should start ignoring the starter switch line altogether, which could make the engine harder to start, but wouldn't cause weird drivability once the engine was running.
You may want to try clearing the code to see if it comes back.
Lots of us have hesitation problems to varying degrees; you could try searching for it. Some potential causes or aggravations include old alternators, old-style knock sensors, worn motor mounts, and dead oxygen sensors.
Posted: Wed Apr 16, 2003 6:57 pm
by DLC
And Platinum spark plugs
Posted: Wed Apr 16, 2003 10:54 pm
by paf
old style knock sensors???
explain
Posted: Wed Apr 16, 2003 10:55 pm
by paf
I know what it does and how it can cause hesitation.
but should i get a new one? I have never changed mine
well not that I know of
Posted: Wed Apr 16, 2003 11:31 pm
by ciper
The older knock sensor design has been replaced. They crack, become oversensative and also the lead brake off.
22060AA031
Ive replaced three already
Posted: Sat Apr 19, 2003 3:43 am
by paf
how much do they cost, the new ones
Posted: Sat Apr 19, 2003 4:00 am
by Legacy777
$32.80 on subaruparts.com