Speedo issue!
06-14-2018, 08:57 PM
#1
TECH Resident
Thread Starter
iTrader: (55)
Join Date: Oct 2005
Location: Cleveland, Oh
Posts: 847
Likes: 0
Received 0 Likes
on
0 Posts
Speedo issue! I need help. No one knows what will fix this so far. I have a 1998 Trans Am and I converted from auto to 6-Speed. I used body and engine harness from a stick car. Problem is my speedo reads 50% of what the car is doing. Is this a 98 issue? Was there 2 different pcm’s? I selected manual trans and it just won’t read right.
06-15-2018, 12:30 PM
#4
TECH Resident
Thread Starter
iTrader: (55)
Join Date: Oct 2005
Location: Cleveland, Oh
Posts: 847
Likes: 0
Received 0 Likes
on
0 Posts
Yes I set the tire size. I used a scanner and the main issue is the pcm is reading half the speed as well. So the cluster is showing what the pcm is sending it.
06-15-2018, 09:10 PM
#7
TECH Senior Member
Trending Topics
06-15-2018, 10:44 PM
#8
I need help. No one knows what will fix this so far. I have a 1998 Trans Am and I converted from auto to 6-Speed. I used body and engine harness from a stick car. Problem is my speedo reads 50% of what the car is doing. Is this a 98 issue? Was there 2 different pcm’s? I selected manual trans and it just won’t read right.
06-15-2018, 11:32 PM
#9
TECH Senior Member