Rear FD 3.54 Problem!!! (P1574)
#31
#32
#34
#35
Swapping front to back will be a waste of time. His rears are not smaller than his fronts. He claims 225/45 front 245/45 rear. His variance between sizes is pushing it @ 2.7% in a Sedan. The sedan computer wants to see a 26.3" tire all around. Something close to that diameter or with stagger fit, something less than 2.0% variance might fly. Putting 245/45's all around should be enough to solve this problem.
#37
This is a common issue for some people when going from a 3.3 FD to 3.5. It is what happens to me ONLY when i exceed 85 mph during my driving period.
This code simply prevents the ECU from allowing Cruise Control to be set.
If I get up to speed and just set the cruise at 80-83 mph everything works fine. There are no issues from this code other than the CC.
This code simply prevents the ECU from allowing Cruise Control to be set.
If I get up to speed and just set the cruise at 80-83 mph everything works fine. There are no issues from this code other than the CC.
#38
Although i trip the P1574 when i go over 85 mph, it always resets after i turn the car off and doesn't affect me the next time i drive if i want to use my CC - and it NEVER turns the CEL on with that code.
This issue was long discussed in the Drivetrain section in a 20+ page thread.
Later years have a different TCM which may not compare both speed sensor inputs - just goes off transmission speed for CC and diff speed for Speedometer. Most likely just one of the many things that was changed after they made the early 2003. LOL
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