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my 1976 2.0L idles and runs nicely, with 1.7 ecu and 1.7 mps ??

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jimkelly	Aug 5 2005, 06:33 AM Post #1
Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region	I bought a fuel injected 2.0L with all the goodies. The ecu was found to not be sending power to the fuel pump so we put an ecu from a 1.7 in it and - bam - power to fuel pump. We then noticed a engine surging problem at idle and put in an mps from a 1.7 and surging problem went away. What problems can this set up cause?? Jim

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mihai914

Aug 5 2005, 07:17 AM

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QUOTE (Dr Evil @ Aug 5 2005, 08:59 AM)

The FI brains for the cars are not an issue if you are using the 2.0 injectors on the 2.0 engine. I would actually suspect a slightly rich running condition, but YMMV. Am I thinking wrong?

Absoleutely monitor your plugs, though. Its easy and tells you a lot.

Check Brad Ander's site for more info.
http://members.rennlist.com/pbanders/

Well if there would of been no issue I think Porsche would of skipped the resistor on the 73 2.0 which used the same ECU as the 1.7

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) though have a good read of Brad Ander's site and monitor that sucker.

Posts in this topic

jimkelly my 1976 2.0L idles and runs nicely Aug 5 2005, 06:33 AM

mihai914 It will be certainly running too lean all the way,... Aug 5 2005, 06:37 AM

Mueller worst case would be it would run too lean and burn... Aug 5 2005, 06:38 AM

Dr Evil Lean? A 1.7 MPS would be used to seeing less sucti... Aug 5 2005, 06:59 AM

mihai914 Aug 5 2005, 07:17 AM

Bleyseng You are fine at idle because the MPS settings are ... Aug 5 2005, 08:10 AM

jimkelly 74 thru 76 ecu will work - or just 75 or 76 ecu? ... Aug 5 2005, 08:24 AM

Bleyseng 1974-76 ECU's all take the 043 MPS and interch... Aug 5 2005, 09:16 AM

jimkelly Is this correct?? Why $100 if good parts are... Aug 5 2005, 09:26 AM

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