Scantool Results between good legacy and bad one, thoughts?
Posted: Thu Sep 28, 2006 1:52 am
Alright, I've been working on my winter beater. I purchased it with hesitation and acceleration issues and the hopes to fix them. I already have one flawless working subaru as my base for all my tests. I ran the Scantool between the two cars and got some different readings. I was hoping you guys could give me some ideas.
The Cars:
Good car- 90 Legacy L 5 speed FWD
Bad car- 91 LS 4EAT AWD
The results with the key turned on but engine off.
Good car:
Timing - 0 degrees BTDC
Airflow sig.- 0.0V
IAC valve duty- 100%
Bad car:
Timing - 30 degrees BTDC
Airflow sig. - .24v
IAC valve duty- 54.9%
Those were the only results that were any different. So what do you guys make of the results? I tried swapping the MAF sensor from the good car to the bad car, but that didn't change anything. Does it matter that the bad car has a plastic JECS and the good car has the aluminum Hitachi one? Right now, from those results I'm leaning towards timing. Again, any thoughts?
The Cars:
Good car- 90 Legacy L 5 speed FWD
Bad car- 91 LS 4EAT AWD
The results with the key turned on but engine off.
Good car:
Timing - 0 degrees BTDC
Airflow sig.- 0.0V
IAC valve duty- 100%
Bad car:
Timing - 30 degrees BTDC
Airflow sig. - .24v
IAC valve duty- 54.9%
Those were the only results that were any different. So what do you guys make of the results? I tried swapping the MAF sensor from the good car to the bad car, but that didn't change anything. Does it matter that the bad car has a plastic JECS and the good car has the aluminum Hitachi one? Right now, from those results I'm leaning towards timing. Again, any thoughts?