[ledzeppelin240]

I was checking out TSB and came accross this. Bulletin No.:NTB91-022.

Condition & Cause
Some 1989-90 240SX vehicles may experience idle fluctuation when coming to a stop (warm engine) or after a warm restart. This condition applies to the flooiwing 240SX vehicles. All 1989-90 California vehicles, and all Federal vehicles built prior to June 8, 1990 and prior to the following VINs:

Federal VINs:
Coupe - JN1HS34P_LW 1090709
Fastback - JN1HS36P_LW 153129

California VINs:
All 89-90

If everything checks out ok and self diagnosis indicates code 55(normal operation)in mode III, replace the ECU with the new part.


Manual Trans 2371M-42F08RE
Auto Trans 2371M-42F66RE


Manual Trans 2371M-40F08RE
Auto Trans 2371M-40F68RE

I am not sure on the prices but this could be a missing link in the idle fluctuation problem.

-chris