Volvo RWD Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 12/2002

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

240 ECU problems

posted by  Alex Z on  Wed Dec 4 03:49 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Oct 3 04:30 CST 2013
[RELATED]

I'd just add here: if you're seeing problems while the engine is cold, I would suspect the control pressure regulator (warm-up regulator) and not the oxygen sensor or lambda unit. The factory oxygen sensor on a 1980 Volvo doesn't have a heater so it won't function while the engine is cold.

Assuming the wires between the o2 sensor and control unit are okay, and assuming you don't know how old the o2 sensor.. replace it. They're about $25. A rebuilt CPR is about $100 (minus the core charge).

- alex

'85 244 Turbo | ~144.9k miles






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 240 ECU problems [200][1980]
posted by  redseahornet  on Tue Dec 3 09:40 CST 2002 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.