 Manifold Pressure Sensor blues |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| Cevan |
 Sep 23 2008, 01:04 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351  |
So I've got this good running '74 2.0 motor that I'd like to swap with the 1.8 in my car. The problem is the MPS (an 043) is shot. It holds no vacuum. From what I've gathered I have 4 options:
1. Find a NOS unit: $$$$ if you can find one. 2. Buy a rebuilt unit that's rebuilt using a different material for the diaphram: I've read that these units (I've been quoted $200-275) don't have the same characteristics as the original and performance suffers. 3. Have mine rebuilt using a good diaphram from another MPS unit: not sure if this is a DIY as I would assume the unit would have to be recalibrated. I know there is a member here that does rebuild them. 4. Buy a used one that holds a vacuum: I've found one for $100. The deal is they want mine as a core. I'm leaning towards the last option. Whadda ya'll think? |
   |
 
|
| Rand |
Sep 23 2008, 01:57 PM
Post
#2
|
|
Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
I agree. Find a deal on a used one. There are some around. When it comes to spending much more $$$ I would rather put it towards a modern FI replacement like SDS.
|
|
|
|
| type47 |
Sep 23 2008, 02:01 PM
Post
#3
|
|
Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
QUOTE(Rand @ Sep 23 2008, 11:57 AM)  . When it comes to spending much more $$$ I would rather put it towards a modern FI replacement like SDS. (IMG:style_emoticons/default/agree.gif) get the car on the road so you can at least drive it and start saving for modern digital EFI system |
|
|
|
| blitZ |
Sep 23 2008, 02:15 PM
Post
#4
|
|
Beer please... Group: Members Posts: 2,223 Joined: 31-August 05 From: Lawrenceville, GA Member No.: 4,719 Region Association: South East States |
I bought a refurbished MPS from Bleyseng, a member here and it has served me well for a few years now. I'm not sure if he offers them anymore. Hopefully, he'll pipe in. I agree going to SDS is a better solution and plan to go that route one day.
|
|
|
|
| Cevan |
Sep 23 2008, 02:55 PM
Post
#5
|
|
Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
QUOTE(blitZ @ Sep 23 2008, 04:15 PM) I bought a refurbished MPS from Bleyseng, a member here and it has served me well for a few years now. I'm not sure if he offers them anymore. Hopefully, he'll pipe in. I agree going to SDS is a better solution and plan to go that route one day. Bleyseng requires a good diaphragm from some other MPS with which to replace your bad one with. So I'd still have to buy a used MPS, and then pay someone to take them apart and put the good diaphragm in my unit. SDS seems overkill for a stock motor. |
|
|
|
| Rand |
Sep 23 2008, 06:48 PM
Post
#6
|
|
Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
QUOTE SDS seems overkill for a stock motor. Just playing devil's advocate to that point... While I would like having a system that would let me build a 2270 when my motor wears out, I was just thinking in terms of cost. Some people have spent enough getting their djet repaired they could have upgraded (or come close). Replacing the MPS buys you time on an old system. I guess it depends on how long you want to keep the car. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 25th May 2024 - 03:41 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.