 MPS testing/adjustment problem. Can't get anything higher than 0.9 H |
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| scottthephotog |
 Jun 16 2020, 05:59 PM
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Member  Group: Members Posts: 187 Joined: 20-November 18 From: Euless, TX Member No.: 22,667 Region Association: Southwest Region  |
I've been following this explanation and walkthrough of testing the MPS; https://members.rennlist.com/pbanders/manif...sure_sensor.htm, and I've come across a problem.
My MPS holds vacuum, I've got correct resistance readings on each of the coils, confirmed that they were isolated properly, so I moved on to adjusting. At 15 in. Hg, reading were correct (.71H). I found that I couldn't get the MPS to reach any higher than 0.9 H with my inductance meter at either the 4 in Hg or 0 in. Hg. I pulled the MPS apart, and measured again with it open (nothing pushing back on the main armature shaft with the armature shaft stops in place). The armature stops don't appear to be bent. With the armature shaft pushed in all the way, I get a reading of 0.45 H. Any thoughts? Is this MPS toast? I can't figure out why it won't register more than 0.9 H, which i way off from 1.44 H. |
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Posts in this topic
scottthephotog MPS testing/adjustment problem. Can't get anything higher than 0.9 H Jun 16 2020, 05:59 PM
tvdinnerbythepool I can tell you that the meter makes all the differ... Jun 16 2020, 07:58 PM
scottthephotog
I can tell you that the meter makes all the diffe... Jun 16 2020, 09:20 PM JeffBowlsby Which ECU tester did you get? Jun 16 2020, 10:29 PM scottthephotog
Which ECU tester did you get?
VW 1218 tester. F... Jun 16 2020, 11:00 PM JeffBowlsby I am not sure why because I know he accessed and c... Jun 16 2020, 08:29 PM JeffBowlsby Thats a pretty good tester. It tests block functi... Jun 16 2020, 11:03 PM Bleyseng
I can tell you that the meter makes all the diff... Jun 17 2020, 07:39 AM scottthephotog Yes. All the correct parts for the 73' 2.0 (EC... Jun 17 2020, 10:44 PM DRPHIL914
Yes. All the correct parts for the 73' 2.0 (E... Jun 18 2020, 10:28 AM scottthephotog Yes. I only changed out the MPS, and the lower hea... Jun 18 2020, 02:47 PM  |
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