I NEED HELP!!!!!

jake15 · Post by **jake15** » Sat Sep 04, 2004 12:59 am

the good- my car finally is running

the bad- its throwing a code, the ecm code. my dad says he's never seen this one before and i'm hoping its doesnt mean i need a new ecm (even though there is one in a junkyard by my house) any help is greatly appreciated. thanks,

jake

vrg3 · Post by **vrg3** » Sat Sep 04, 2004 1:06 am

The ECM code? What code is that?

jake15 · Post by **jake15** » Sat Sep 04, 2004 1:42 am

i dont know the number, but on the scanner the code says engine control module (or electric control module) i cant remember, but it runs, just not to well. ahhhhhhhh

vrg3 · Post by **vrg3** » Sat Sep 04, 2004 1:50 am

What scanner?

Try pulling the codes using the usual method (http://www.surrealmirage.com/subaru/engine.html) and see what happens.

jake15 · Post by **jake15** » Sat Sep 04, 2004 2:00 am

its the factory subaru scanner

vrg3 · Post by **vrg3** » Sat Sep 04, 2004 2:04 am

Is it possible that you misinterpreted what the readout said? There is no code "for the ECM" as far as I know.

The Select Monitor should have also given you a number for the code -- what number did it give?

jake15 · Post by **jake15** » Sat Sep 04, 2004 2:12 am

apparently there is a code for the ecm, my dad didnt know there was one either, so i dont think it pops up much. but the code # is 49. we think its a grounding issue but i dont think i forgot to connect anything. worst case senario is that i have to rip apart the interior again and check all my grounds.

vrg3 · Post by **vrg3** » Sat Sep 04, 2004 2:31 am

Ohhhhh..... okay.

There kind of is a code for the ECU.

49 is the code for a system error. What it really means is that there's a mismatch between the ECU and the MAF sensor.

You're using the EJ22T ECU with your EJ22T engine, right?

Was your 90 Legacy an automatic? If it was, it's got the wrong type of MAF sensor. You need to swap over the aluminum-bodied sensor from a turbo or a 90-91 5-speed non-turbo.

If you don't have the correct MAF sensor, be very careful driving the car; your air/fuel ratios are going to be wrong.

jake15 · Post by **jake15** » Sat Sep 04, 2004 3:03 am

THANK YOU!!! i put a correct one on there and it works fine

the reason the wrong one was on there is being at a subaru only shop, theres lots of parts lying around including maf's so i just grabbed one of the plastic ones for the automatics (apparently only n/a automatics), since the car is an automatic, and stuck it on, and it didnt work to good. thanks again for all your help

vrg3 · Post by **vrg3** » Sat Sep 04, 2004 3:31 am

Cool.

You're welcome.

legacycentral bbs

A forum for 89-94 BC-BF(BJ) Legacy Owners and Fans

I NEED HELP!!!!!

I NEED HELP!!!!!