Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 12/2002 200 INDEX

[<<]  [>>]


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

missing engine rpm signal 200 87

I'm troubleshooting a problem on my 87 240DL. It's got a b230f w/auto trans, LH2.2 FI, and volvo/chrysler ignition. While going through the FI ecu tests, the Bentley manual says that with the ignition on, there should be 12V at pin 1. My meter shows about .04v. The connection to that pin is the "engine rpm signal". Following the schematics, I traced it back to pin 8 of the ignition ecu. I checked for continuity between pin 8 of the ignition ecu and pin 1 of the FI ecu and there is continuity. I also checked for 12v at pin 8 of the ignition ecu. No voltage there either. The car starts and runs, but after it warms up and has been idling a while, the car wants to die during acceleration, and when it finally does kick in, the acceleration surges.

So here's my questions:

1. Is the 12v really supposed to be there? I know that manuals can be wrong, and I'd really hate to be chasing my tail if this is a misprint.

2. Months ago while tracking down another problem, I disconnected the igntion ecu connector from the ecu. Today I read in the manual that you shouldn't disconnect the ignition ecu connector, and that if you do, you have to replace the ignition harness because of some "one time only" type of pins on that connector. Is this true? And if it is, who's the bonehead that thought that one up?

3. I was also checking the primary resistance of my coil. The manual states that it should be between 1.1 and 1.3 ohms. Mine reads 1.7. Is this too far out of spec?

Sorry for being so long winded, and thanks in advance for any help.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New missing engine rpm signal [200][87]
posted by  someone claiming to be Neal  on Sat Jul 10 12:27 CST 1999 >


<< < > >>



©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.