 Symptons of a Bad MPS ?, How can I test? |
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| vesnyder |
 Sep 1 2006, 12:57 PM
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Senior Member  Group: Members Posts: 680 Joined: 14-April 05 From: Cleveland, OH Member No.: 3,933  |
I am getting terrible milage (~18) in a D-jet 1.7, and individuals have suggested the MPS? Are there other symptons? How can I test? Anybody have a spare I can test?
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| jk76.914 |
Sep 1 2006, 01:19 PM
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#2
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
1. see if it will hold a vacuum.
2. measure resistance- between outer pins on connector- 90 ohms (about) 3. resistance between the two center pins- 350 ohms (give or take) 4. resistance between either center pin and either outer pin- zero ohms. 5. resistance between either center pin and ground- zero ohms. 6. resistance between either outer pin and ground- zero ohms. There's a good chance it won't hold a vacuum with those MPG numbers. If the diaphram is leaking, it'll fool the MPS into thinking, "hmmmm. He must be running WOT. I guess I'll richen up the mixture for him!" If all these tests are OK, the MPS could still be bad. But you'd need an LC meter to go to the next step of testing. Jim |
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Posts in this topic
vesnyder Symptons of a Bad MPS ? Sep 1 2006, 12:57 PM
drewvw first thing you can do is disconnect and plug the ... Sep 1 2006, 01:01 PM type47 checks are to see if it holds a vacuum for "a... Sep 1 2006, 01:06 PM Rand The simple sure-fire test of the most likely MPS f... Sep 1 2006, 01:08 PM drewvw You Want To Become Very Familar With This Site
:... Sep 1 2006, 01:10 PM SLITS After you've done the MPS thingy.....
1.) Fu... Sep 1 2006, 01:39 PM vesnyder Used my trusty MityVac to check the vacuum and it ... Sep 1 2006, 02:37 PM drewvw bleyseng is the man...talk to him Sep 1 2006, 02:38 PM Bleyseng I think I have sold about 40 rebuilt ones to club ... Sep 1 2006, 05:16 PM
type47 let's say someone had an LM-1. how do you adju... Sep 1 2006, 06:20 PM |
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