 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: 326 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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Replies
| Ron914 |
Apr 22 2025, 08:42 PM
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#2
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Member Group: Members Posts: 326 Joined: 19-April 22 From: Huntington Beach,Ca Member No.: 26,487 Region Association: Southern California
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Hello Emery,
Finally had time to look at my car today . To clear up a bit of confusion I do not have the Euro spec MPS in my car (I am using my original MPS (the adjustment screw is intact and the factory seal was never messed with. I only added the resistor because in the box of parts there was a homemade resistor (it was not re-usable ) so I purchased what I believe was a replacement part for it from AA . The MPS I am using on my 2056 motor is the original that came with the car . I read a post from GregAmy that tells you how to test your decel valve so I did that today first and found that there was nothing wrong with my original decel valve except a PO had changed the adjustment on the plenum side connection and once I loosened the locking nut and opened it up I could now blow through it when I applied 15-17inhg to it . I did reconnect it to the plenum (not sure if I should have done this first today). I started the car up with my MPS connected and the resistor mentioned removed from the CHT circuit. There is no resistor in-line between the CHT and the ECU currently. As before I had to retard my distributor to get the motor to start . I did not plug the MPS port on the plenum but left it connected to my MPS .I drove the car around the block a few times and it seemed to be getting hot . It actually touched the red mark on the temp gauge so I shut it off and parked it before I do damage to the motor. I will not be able to get back to the car until Thursday so I will update with more information then . While driving the car around I had the previous issue of the idle staying around 2000 when I lifted on the throttle and slowly coming back down (This is a problem so maybe II I should just disconnect the decel and plug the two ports on the plenum ,this will leave only the MPS connected to the plenum . Should I also remove the retard hose from my throttle body and plug it also , this will leave no control of the trigger points in my distributor ? |
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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 porschetub [quote name='IronHillRestorations' date=... May 8 2025, 06:46 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 emerygt350 Oh the trouble we go through ;).
Someday I hope... Mar 26 2025, 08:45 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 Ron914 Good morning Emery @emerygt350 ,
I finally had a ... Apr 5 2025, 07:25 AM Ron914
Good morning Emery [b]@[url=http://www.914world.... Apr 5 2025, 07:27 AM Ron914
Good morning Emery [b]@[url=http://www.914world... Apr 5 2025, 07:50 AM emerygt350 Let me see if I understand what you posted. When ... Apr 5 2025, 08:13 AM Ron914
Let me see if I understand what you posted. When... Apr 5 2025, 01:19 PM emerygt350 Definitely check the vacuum before you go breaking... Apr 5 2025, 02:34 PM Ron914
Definitely check the vacuum before you go breakin... Apr 5 2025, 03:43 PM Ron914
Definitely check the vacuum before you go breaki... Apr 5 2025, 03:46 PM Ron914
[quote name='Ron914' post='3199804' date='Apr 5 2... Apr 5 2025, 03:48 PM fiacra
[quote name='Ron914' post='3199804' date='Apr 5 2... Apr 5 2025, 04:14 PM emerygt350 That interval is what I shoot for, and I drive my ... Apr 5 2025, 05:13 PM Ron914 Emery ,
If the flaps are working and nothing has ... Apr 7 2025, 07:29 AM Ron914 Before I left for AZ I took photos of a couple of ... Apr 10 2025, 06:25 PM Superhawk996 Part on the left is the oil pressure switch for th... Apr 11 2025, 04:19 AM emerygt350 I would hate to be changing the cht sender at the ... Apr 11 2025, 07:07 AM Superhawk996
Hopefully what you have installed is the right o... Apr 11 2025, 08:11 AM emerygt350 Definitely don't use the retard till you are g... Apr 23 2025, 06:09 AM emerygt350 The more I think about the more I suspect your diz... Apr 23 2025, 06:15 AM Superhawk996 :agree:
Gauge measures oil temp. Vehicle shoul... Apr 23 2025, 07:38 AM Ron914 I was probably idling and driving 30-40 minutes. I... Apr 23 2025, 07:58 AM Superhawk996
“ I assumed the thermo would pull them if w... Apr 23 2025, 08:57 AM ClayPerrine
“ I assumed the thermo would pull them if ... Apr 23 2025, 10:03 AM Ron914
“ I assumed the thermo would pull them if... Apr 24 2025, 12:04 PM Ron914 @emerygt350 ,Superhawk996,
I pulled my car out thi... Apr 24 2025, 01:38 PM Superhawk996 MPS should not be bleeding down noticeably
Redo ... Apr 24 2025, 01:44 PM Ron914
MPS should not be bleeding down noticeably
Redo... Apr 24 2025, 04:49 PM emerygt350 And your car should start with the vacuum hose off... Apr 24 2025, 02:18 PM Superhawk996 I am not sure if anyone has the diaphragms.
Tr... Apr 24 2025, 02:48 PM Ron914
And your car should start with the vacuum hose of... Apr 24 2025, 04:55 PM emerygt350 Hmmm... I put a new to me fan on mine when I rebu... Apr 24 2025, 07:02 PM Superhawk996
And your mps should hold air much longer than th... Apr 24 2025, 07:19 PM Ron914
Hmmm... I put a new to me fan on mine when I reb... Apr 24 2025, 07:57 PM Ron914 If I can find parts I will need some coaching on r... Apr 24 2025, 08:05 PM Ron914 Nothing on Patrick's site
I just found this bu... Apr 24 2025, 08:11 PM emerygt350 That's part of it. On a 76 if you have the ori... Apr 24 2025, 08:21 PM Superhawk996 Was revisiting a previous thread
Found this:
... Apr 24 2025, 08:23 PM Ron914
Was revisiting a previous thread
Found this:
... Apr 24 2025, 08:28 PM Superhawk996 I’m getting old - I don’t remember seeing that... Apr 24 2025, 08:45 PM Ron914
I’m getting old - I don’t remember seeing tha... Apr 24 2025, 09:11 PM Superhawk996
[quote name='Superhawk996' post='3202614' date='A... Apr 25 2025, 07:26 AM emerygt350 That's tough. The rebuild kit plus the tuning... Apr 25 2025, 04:24 AM Ron914
That's tough. The rebuild kit plus the tunin... Apr 25 2025, 06:47 AM Ron914 I found this AFR on a website ,What do you think ?... Apr 25 2025, 06:56 AM TJB/914 Hi Ron,
I sent you a PM this morning.
I have what ... Apr 25 2025, 07:03 AM Ron914 @Superhawk996 , [b]@[url=http://www.914world.com/b... Apr 25 2025, 07:45 AM Superhawk996
[b]@[url=http://www.914world.com/bbs2/index.php?s... Apr 25 2025, 07:56 AM JeffBowlsby
[b]@[url=http://www.914world.com/bbs2/index.php?s... Apr 25 2025, 08:29 AM Ron914
[b]@[url=http://www.914world.com/bbs2/index.php?... Apr 25 2025, 08:32 AM TJB/914
[b]@[url=http://www.914world.com/bbs2/index.php?s... Apr 25 2025, 09:00 AM Ron914
[b]@[url=http://www.914world.com/bbs2/index.php?... Apr 25 2025, 09:10 AM JeffBowlsby Sincere apologies Ron, did not realize your engine... Apr 25 2025, 09:03 AM Ron914 What else do you have in that box of junk(just kid... Apr 25 2025, 09:13 AM Ron914 @emerygt350 , [b]@[url=http://www.914world.com/bbs... Apr 25 2025, 10:39 AM emerygt350 I suggest an aem O2 sensor and gauge, I have tried... Apr 25 2025, 11:15 AM Ron914
I suggest an aem O2 sensor and gauge, I have trie... Apr 25 2025, 12:21 PM emerygt350 In this video my I am cruising down the highway at... Apr 25 2025, 11:20 AM Ron914
In this video my I am cruising down the highway a... Apr 25 2025, 07:58 PM Ron914 @emerygt350 , [b]@[url=http://www.914world.com/bbs... Apr 25 2025, 04:25 PM Ron914 @emerygt350
I found these online ,would they be w... Apr 25 2025, 07:56 PM Ron914 I can actually buy this set up on Amazon with free... Apr 25 2025, 08:15 PM Ron914 I forgot this one , and these choices look like my... Apr 25 2025, 08:24 PM emerygt350 Yes, those look good. Make sure the cables are lo... Apr 25 2025, 08:27 PM Ron914
Yes, those look good. Make sure the cables are l... Apr 25 2025, 09:11 PM emerygt350 If there is a 12 you may want that instead. Apr 26 2025, 04:19 AM Ron914
If there is a 12 you may want that instead.
@em... Apr 26 2025, 07:00 AM emerygt350 I bought the 18 and it was way too much. I just l... Apr 26 2025, 02:04 PM Ron914
I bought the 18 and it was way too much. I just ... Apr 26 2025, 04:48 PM Ron914 @emerygt350
Update: Where I am as of today . I k... May 6 2025, 05:13 PM rjames I have lost track of some of this thread, and I kn... May 6 2025, 05:37 PM Ron914
I have lost track of some of this thread, and I k... May 6 2025, 06:06 PM emerygt350 That looks like some good progress. I couldn... May 6 2025, 06:11 PM Ron914
That looks like some good progress. I couldn... May 6 2025, 06:47 PM emerygt350 The only thing you will be playing with are the id... May 7 2025, 05:14 AM rjames If the MPS won’t hold vacuum or is set way too l... May 7 2025, 09:03 AM emerygt350
If the MPS won’t hold vacuum or is set way too ... May 7 2025, 09:39 AM rjames
If the MPS won’t hold vacuum or is set way too... May 7 2025, 10:32 AM Ron914 Still working on my D-Jet issues I ran my motor an... May 7 2025, 02:14 PM emerygt350 Very good idea. You have the chart for that temp ... May 7 2025, 04:42 PM Ron914
Very good idea. You have the chart for that temp... May 7 2025, 05:00 PM emerygt350 One is for the supplementary heater on my afr (doe... May 7 2025, 07:36 PM Ron914
One is for the supplementary heater on my afr (do... May 7 2025, 09:50 PM emerygt350 You may want the afr up top and the cht down low w... May 7 2025, 07:37 PM emerygt350 The instructions are online, not sure what model y... May 8 2025, 04:19 AM |
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