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> where the hell do i find, a good 2.0 MPS.....
dgw
post May 22 2005, 11:26 PM
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This thread makes me appreciate my Porsche mechanic more than I already did. Mine went bad, they had the car for a couple of days before they finally verified that the diaphram was cracked. He raided his bone pile and rebuilt mine. Its worked great ever since.
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xsboost90
post May 23 2005, 05:45 AM
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my PO bought a complete used injection system because the computer was bad in my car. He replaced the computer and put the rest in a box, which i now have on a shelf. comes in handy when in need.
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Bleyseng
post May 23 2005, 06:22 AM
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QUOTE (dgw @ May 22 2005, 09:26 PM)
This thread makes me appreciate my Porsche mechanic more than I already did. Mine went bad, they had the car for a couple of days before they finally verified that the diaphram was cracked. He raided his bone pile and rebuilt mine. Its worked great ever since.

I would hazzard a guess that the A/F ratio is off on that MPS unless he used a Wideband on it to calibrate the MPS. You can't get closer than "it runs" using the "ear" method to calibrate. Its also nearly impossible to set the WOT without somesort of wideband or electronic meter like a Wavetek inductance meter. (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif)
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SLITS
post May 23 2005, 09:10 AM
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QUOTE (bd1308 @ May 22 2005, 07:32 PM)
I dont like bugging miles, so i changed for ya man.....


what's the non-miles approach to taking off the FI harness for DIY soldier and shrink tube repair??

It isn't that hard to change a complete harness in the car....have done it several times....Jeeezzz Britt, it's only spade connectors except for the throttle body, MPS, cold start valve, injectors, trigger points and Temp Sensor II. Label the shit if you have a short memory. After 30 years of heat, the harness kinda conforms to where it was connected...you can dam near throw it at the car and it will lay like it is supposed to.

The worst part is just running the harness and wires under the runners & such where reuquired.

According to Jeff Bowlsby, the 1.7/2.0 are very similar electrically, but some of the connections would be located in a different place...I would think mainly the cold start valve and throttle body connector.

Better yet, just buy a rebuilt/new harness from Jeff...................
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bd1308
post May 23 2005, 09:27 AM
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i think thats ultimately what I would need to do.......anybody have a link?
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SLITS
post May 23 2005, 10:05 AM
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QUOTE (bd1308 @ May 23 2005, 08:27 AM)
i think thats ultimately what I would need to do.......anybody have a link?

I thought you were a computer nerd the way you talk....regardless, a search would have found what you were asking about AND if you had looked in 914 Parts and Resources, you would have found it also.

http://www.914world.com/bbs2/index.php?act=...T&f=4&t=2949&s=
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redshift
post May 23 2005, 10:20 AM
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Here is a more direct link Britt:

Harness Link


M
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gklinger
post May 23 2005, 10:29 AM
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QUOTE (redshift @ May 23 2005, 09:20 AM)
Here is a more direct link Britt:

Harness Link


M

LOL

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Cap'n Krusty
post May 23 2005, 10:50 AM
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QUOTE (wilchek @ May 22 2005, 05:36 AM)
they are rebuidlable and are done for 150.00 buck. No it is not the proper diaphram, but they work for the most part. Check out Brad's site. He even admits to using one that was rebuilt with no problems. Some people say that they do not respond as quick but others have not noticed any difference. Either way it is worth trying for 150.00 bucks. They only problem is that the company that does it, only does it through a retailer so you have to call GPR or AA and have them send it. Bret Instruments are the rebuilders. Check out the Q&A at the bottom of the page

http://members.rennlist.com/pbanders/manif...sure_sensor.htm

Bret's stuff was crude and unreliable in the 70s and 80s, why should it be any better now? I've had a Bret rebuilt ECU apart, and it was festooned with jumper wires like streamers at a backyard birthday party for a 5 year old. The MPSes they sold then had SS diaphragms .............. RAMs stuff was better, but I dunno if they're still around. Maybe Python does them? The Cap'n
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nebreitling
post May 23 2005, 11:16 AM
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Britt: what have you done to determine that your MPS is bad?
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bd1308
post May 23 2005, 11:32 AM
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QUOTE (nebreitling @ May 23 2005, 11:16 AM)
Britt: what have you done to determine that your MPS is bad?

ron: I woke up this morning with extreme intestinal cramps caused by IBS....look it up. women mostly get it, but its a universal condition.

miles: funny.....

nebreitling: Nothing....i was trying to just throw parts at it randomly to see if anything would work...and surprise surprise it doesnt


today is a bad day.....wish it was yesterday again.
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