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P1800 ES

posted by  planetman on  Sun Aug 18 15:39 CST 2019
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:29 CST 2014
[RELATED]

Check to see if the VPS/MPS holds vacuum and if it does then ohm test the sensor. The test procedure is in the Haynes manual.

However, the ohm test and vacuum tests can both still give good results and the unit can still be bad and that is what happened most recently.

When the sensor fails this way, the car won't start and the only way my customer got the car to run was to install a good used unit. It wasn't the exact right 1, but it got the car running.

The plan is to have his old unit rebuilt.

If you are interested, check out this website page I found that describes the vacuum sensor.

https://oldtimer.tips/en/d-jetronic/mps
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com






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