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| Bullet |
 May 31 2004, 12:23 PM
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#1
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Member  Group: Members Posts: 116 Joined: 16-April 04 From: Newberg, OR Member No.: 1,940  |
I can seem to get my 914 to not run Rich. I have checked Injector spray paterns, replaced cap,rotor, points, condensor,plugs, plug wires. and belive that my vacuum routing is correct. I question the integrety of the MPS. if i remove the vacuum hose that runs to it and clamp it off i get no change at all in performance. I was told by a co-worker that i should drill out the riviots and check to see if it is gummed up. I just removed it and am getting ready to take it apart, when out of curiousity I ohm checked the teminals and this is what i got : pin 8 - pin 10 350 ohms, pin 7 - pin 15 90 ohms. is this normal? does anyone know of any way to check the MPS. Or could any one do a quick ohm check on theese terminals to let me know if that is a correct reading? any help would be greatly apreciated.
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Replies
| Bullet |
Jun 13 2004, 06:18 PM
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#2
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Member Group: Members Posts: 116 Joined: 16-April 04 From: Newberg, OR Member No.: 1,940 |
Im about to give up on this car. It has to have a Demon! I got an injector that works now, All cylinders stumble when i disconnect the wires for the injectors. But it still runs like crap. I havent checked the flow of the injectors yet, but i have checked resistance on them and they all were the same 2-3 ohms. removed them all and checked the intake screens and they were clean. when it is running I can see that it is still missing, if i rev it up at part throttle it stats to hip-up or surge. now that i have that injector working my idle vacumm is between 12-15. I have gone through tons of brake clean trying to find a Vaccum leak and have not found one. Have gone through pinching lines to see if that made a differance at all, and have found nothing. I barowed a friends ECM form a 73 and that made no change for the better. it ran a little Worse with that ECM. My dwell is at 51-52 will that make a big differance? I have only staticly timed it, runs to bad to attemt to set that at 3500. Does any one have any idea's on were to go with this?
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Posts in this topic
Bullet MPS May 31 2004, 12:23 PM
gklinger Pretty much everything you could want or need to k... May 31 2004, 12:34 PM Bullet Thanks for the link. I was just surfing around on... May 31 2004, 12:38 PM gklinger Bullet I read through his site and still come to the conc... May 31 2004, 01:26 PM mike_the_man First of all, pull a vacuum on the MPS. I bet th... May 31 2004, 01:29 PM Bullet Well it looks like i wil have to wait untill tomor... May 31 2004, 02:36 PM mike_the_man Not much you can test with the trigger points, as ... May 31 2004, 03:43 PM pbanders Rich running can have several causes. First thing ... May 31 2004, 04:06 PM pbanders If your car has over 100K miles and you don't ... May 31 2004, 04:07 PM Bullet ... May 31 2004, 06:01 PM pbanders Bullet QUOTE
tod914 Goes right behind the Heat level inbetween the 2 s... May 31 2004, 06:40 PM lmcchesney Brad has given you the method of checking the vacu... May 31 2004, 08:06 PM bob174 I saw some advice about adjusting the mixture with... May 31 2004, 08:35 PM Bullet tod914 That's it. That defrost cover has a baseplate... Jun 1 2004, 08:14 AM Bullet QUOTE
Bleyseng All MPS's are basically the same. Some are sho... Jun 1 2004, 07:55 PM 4WheelDrifter L McC, I didn't mean you listed the auction, j... Jun 1 2004, 11:02 PM lmcchesney My email was lighting up with questions. Jun 2 2004, 06:21 AM Bullet Well, I won the auction for the MPS. recived it i... Jun 10 2004, 11:00 PM dmenche914 there are different MPS for different years, and e... Jun 11 2004, 12:40 AM dmenche914 Valve adjustment ????, compression test???? Is the... Jun 11 2004, 12:47 AM Bullet It is a fresh rebuild. I adjusted the valves when... Jun 11 2004, 01:06 AM pbanders What does the vacuum gauge guide tell you about a ... Jun 11 2004, 09:43 AM nebreitling you have replaced the trigger points, no?
do it i... Jun 11 2004, 09:48 AM mike_the_man Have you tested all of the injectors to make sure ... Jun 11 2004, 10:18 AM Bullet What i came up with, Even though Injector #3 does... Jun 11 2004, 08:52 PM lmcchesney You are getting there Bullet. Just a little more.... Jun 12 2004, 12:44 PM Bullet I jsut went out side and fired it, Noticed that wh... Jun 13 2004, 06:50 PM Bullet I was reading through some stuff on pbanders site ... Jun 13 2004, 08:44 PM Bleyseng It goes to the plenum via a rubber boot that has a... Jun 13 2004, 10:21 PM Bullet I also just discoverd that if i remove the Yellow ... Jun 13 2004, 10:35 PM RustyWa Bullet mine is a 75 2.0L. So you are saying that it goes... Jun 13 2004, 11:43 PM Bleyseng Air cleaner then if you have a 75 with all the smo... Jun 14 2004, 08:18 AM RustyWa ... Jun 14 2004, 08:20 AM RustyWa I need a reminder. The MPS has no effect on the I... Jun 16 2004, 01:07 PM Jeff Bonanno a quote from pbanders site (MPS page):
"The LVT, ... Jun 16 2004, 01:43 PM pbanders The basic injection pulse width at idle is still d... Jun 16 2004, 04:18 PM Bullet So is that a yes or a No? does the MPS have an ef... Jun 16 2004, 06:58 PM Bleyseng Only a leaky MPS has an effect on the idle as it s... Jun 16 2004, 08:09 PM Bullet I dont think that the cam would have much of an ef... Jun 16 2004, 08:21 PM Bleyseng There is no way to accurately set the A/F without ... Jun 16 2004, 10:13 PM Bullet I have access to a 5-gas machine at work that i wa... Jun 17 2004, 12:24 AM Bullet today a bummed a known good MPS that a co-worker h... Jun 17 2004, 08:36 PM
lmcchesney Glad to hear you isolated the problem to the MPS.
... Jun 18 2004, 06:22 AM |
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