Workshop Repair Manuals

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volvo Workshop Repair Guides


940 L4-2.3L SOHC VIN 88 B230F (1992)

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Engine Control Module: > 28113 > Aug > 93 > Engine Controls - Stalls, Hesitation, Poor Driveability > Page 4148

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Follow the diagnostic flow chart. Any pre-existing out-of-line condition will only aggravate the above described conditions and should be corrected
before proceeding further. Out-or-line conditions Include poor compression, incorrect valve clearance, intake valve deposits, injector deposits, etc.

All vehicles with the Regina/Rex engine management system will have the new MFI Regina control module from the 1994 model year production start.
If the vehicle already has MFI control module, p/n 5003946-0 or 9146261-4 the update has already been performed.

REPAIR PROCEDURES:

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Engine Control Module: > 28113 > Aug > 93 > Engine Controls - Stalls, Hesitation, Poor Driveability > Page 4148

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