Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 3/2005 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

ECU / No start 850

posted by  jadnhm on  Wed Nov 9 12:21 CST 2011
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue May 22 18:03 CST 2012
[RELATED]

you say you verified fuel and spark, which is good. Did you verify that you have proper pressure as well as merely fuel presence? You will need pretty decent pressure for the fuel injectors to work - I think it's something like 35+ PSI before they will even work. You might be able to verify that number by searching around the board a bit.

Clean your throttle body with a toothbrush and throttle body cleaner.

Clean your IAC with throttle body cleaner - just spray a bunch of cleaner in, plug the holes with your fingers, shake it around, empty, repeat a few times.

Make sure your CPS wiring is not near the ignition wires as this can sometimes cause interference.

There should be nothing wrong with your ECU unless you've been playing with the electrical system, like plugging/unplugging components with the engine running, jump starting recently, etc.

BTW the control unit with the Bosch sticker is the engine control unit, the other one is for the transmission.

--
1998 V70 AWD->FWD->AWD Turbo 220k+






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New ECU / No start [850]
posted by  someone claiming to be Eddie G  on Wed Nov 9 10:22 CST 2011 >


<< < > >>



©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.