Riviera V6-231 3.8L Turbo VIN 9 FI (1984)
PROM - Programmable Read Only Memory: Customer Interest
Engine - Hard Cold Starts/False Codes Set
Bulletin 84-6E-29
Date
Nov. '84
Ref. No. 84-346-6E
SUBJECT:
PROM CHANGE FOR ASSISTING COLD ENGINE STARTS AND CORRECTION OF FALSE CODE 34, 42 & 43
MODELS AFFECTED: 1984 T-TYPE RIVIERAS WITH 3.8L TURBOCHARGED ENGINES (VIN CODE 9)
This PROM is available for service correction of hard starting at -20~F and correction of codes 34, 42, & 43, when use of the diagnostic chart leads to
NO trouble found.
PROM part number 1227064 to correct these conditions should be ordered from WDDGM and installed per the 1984 Chassis Service Manual.
Service Number
Broadcast Code
PROM ID Number (Scan Tool)
1227064
DXP
7064