computer replacement?
#1
Junior Member
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
computer replacement?
How do you know if your computer needs to be replaced?
I bought a 91 f150 w/ 5.0 v8 and the diagnostics complains about some of my brand new sensors but did not complain about the faulty ones that i replaced.
Also does the computer have anything to do with shifting gears? won't get above 20 mph but have not started diagnosing that yet.
thanks!
I bought a 91 f150 w/ 5.0 v8 and the diagnostics complains about some of my brand new sensors but did not complain about the faulty ones that i replaced.
Also does the computer have anything to do with shifting gears? won't get above 20 mph but have not started diagnosing that yet.
thanks!
#3
Remove the ECM and open the cover and look for anything burnt on the board. It's located under the driver side kick panel. There are places that rebuild them. I'm on my 3rd one on my 90... Call your Ford dealer with the vin and they should be able to tell you what trans you have. That could be vacuum shifted.
Edit.. Stupid question, I know, but did you reset the computer after you replaced the engine management parts?
Edit.. Stupid question, I know, but did you reset the computer after you replaced the engine management parts?
Last edited by southernyankey1; 04-19-2014 at 04:37 PM.
#4
Junior Member
Thread Starter
Join Date: Apr 2014
Location: Texas
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Yep had it disconnected for the last 18 hours then repulled the codes. Now it is only complaining about 1 new sensor but also through code 998 (hard fault present) this time.