 1976 2.0L D-jet, distributor vacuum |
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| Ron914 |
 Mar 24 2025, 05:21 PM
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Member  Group: Members Posts: 181 Joined: 19-April 22 From: Huntington Beach,Ca Member No.: 26,487 Region Association: Southern California 
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@emerygt350
I was asked my a member helping me with my high idle /vacuum leak problem how I currently have it hooked up .This is the diagram I am using .  |
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| emerygt350 |
Mar 26 2025, 08:45 AM
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Advanced Member Group: Members Posts: 2,787 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Oh the trouble we go through (IMG:style_emoticons/default/wink.gif).
Someday I hope to take a long road trip in the 914, who knows how far I will get. I have cousins in Huntington Beach, great uncle worked for Howard Hughes. Tuning the MPS is a bit of a beast. After a couple of years poking at it I think I have determined why it is so hard to get perfect on my 2056. The vacuum profile of the motor is different at cruise. This will also play havoc with your EGR and retard. When it comes time the first thing you will want to do is get a good baseline of what vacuum you are pulling at idle and cruise. My engine pulls so much more than stock that it was activating the retard circuit when it shouldn't have been and same with the advance. Once you start reaching into the throttle it doesn't matter so much but it's the part throttle bits that really get screwy. Don't forget you can use that pump to monitor vacuum in the plenum. Will be interesting to know how much yours is pulling. |
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Posts in this topic
Ron914 1976 2.0L D-jet Mar 24 2025, 05:21 PM
emerygt350 How high is the idle currently? Mar 24 2025, 05:28 PM
Ron914
How high is the idle currently?
still around 140... Mar 24 2025, 06:19 PM Ron914 I think I might have a bad decel valve but others ... Mar 24 2025, 06:20 PM IronHillRestorations You might want to make sure the advance mechanism ... Mar 24 2025, 08:12 PM emerygt350 That was my first thought. But you don't have... Mar 25 2025, 05:31 AM Ron914
That was my first thought. But you don't hav... Mar 25 2025, 07:59 AM emerygt350
That was my first thought. But you don't ha... Mar 25 2025, 08:48 AM emerygt350 Also ... 1400 just happens to be where the aar put... Mar 25 2025, 05:34 AM Ron914 Good morning Emery ,
I purchased these last night ... Mar 26 2025, 08:00 AM Ron914 Great to hear you have family in Huntington Beach ... Mar 26 2025, 10:02 AM emerygt350 Very cool. Nothing bike related going on for anot... Mar 26 2025, 10:32 AM Ron914
Very cool. Nothing bike related going on for ano... Mar 26 2025, 10:58 AM emerygt350 If there is salt she hides in the garage. Otherwi... Mar 26 2025, 12:18 PM |
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