 ‘74 1.8L L-Jetronic Cold Start Low Idle, Mystery solved! |
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| Van B |
  Nov 7 2021, 04:01 PM
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#1
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Senior Member  Group: Members Posts: 1,621 Joined: 20-October 21 From: WR, GA Member No.: 26,011 Region Association: None 
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Ok fellas, here’s the run down Aux Air Regulator (AAR) and Cold Start Valve (CSV)/injector both work fine. Many of you have also been keeping up with my high idle issue that we figured out.
But yet, when the car is cold, i.e. room temp, I don’t get the high idle I should on start-up. Instead she cranks a bit and then lumbers to life. Idle lopes around 700-800rpm and then smooths out as it warms. In all other aspects of operation, the engine seems to be pretty happy. Thoughts? Experience? (IMG:style_emoticons/default/confused24.gif) -Van See post #419 on page 14 for a synopsis of the outcome. |
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Posts in this topic
Van B ‘74 1.8L L-Jetronic Cold Start Low Idle Nov 7 2021, 04:01 PM
ClayPerrine Just an FYI.... the CHT for a 914 is NLA. The afte... Nov 18 2021, 09:17 AM
wonkipop
Just an FYI.... the CHT for a 914 is NLA. The aft... Nov 18 2021, 04:41 PM
StarBear
Just an FYI.... the CHT for a 914 is NLA. The aft... Nov 18 2021, 04:57 PM djway My 2.3 build won't idle until head temp gets t... Nov 20 2021, 12:06 AM Porschef Hmmmmm
This is interesting, an adjustment on the ... Nov 20 2021, 07:21 AM emerygt350 On my 2.0, when I cut the aar off at cold start th... Nov 20 2021, 03:56 PM emerygt350 Maybe that's an idea too. I think you said yo... Nov 20 2021, 05:33 PM Van B
Maybe that's an idea too. I think you said y... Nov 20 2021, 07:13 PM emerygt350 Vacuum retard makes a nice idle possible... Nov 20 2021, 06:00 PM Van B Never seen an emissions sticker in the engine bay.... Nov 20 2021, 07:08 PM wonkipop @Van B
thanks for photos and vin info.
if the... Nov 20 2021, 08:02 PM wonkipop @Van B
yours is the splitting image of the setup... Nov 20 2021, 08:24 PM StarBear
@[url=http://www.914world.com/bbs2/index.php?show... Nov 21 2021, 06:57 AM wonkipop
[quote name='wonkipop' post='2961332' date='Nov 2... Nov 21 2021, 03:47 PM Van B @wonkipop retarding further is just sparking late... Nov 20 2021, 08:46 PM wonkipop
[b]@[url=http://www.914world.com/bbs2/index.php?s... Nov 21 2021, 02:18 AM Van B Well, emissions sticker is there… its also gone ... Nov 20 2021, 09:08 PM wonkipop
Well, emissions sticker is there… its also gone... Nov 21 2021, 02:59 AM L-Jet914
Well, emissions sticker is there… its also gone... Nov 21 2021, 11:22 PM ClayPerrine I haven't looked at the availability of the Da... Nov 21 2021, 06:28 AM Van B I’m gonna say it says 604. I almost lost what wa... Nov 21 2021, 10:34 AM StarBear
I’m gonna say it says 604. I almost lost what w... Nov 21 2021, 01:28 PM wonkipop calling all 74 1.8 owners reading this thread.
w... Nov 21 2021, 03:56 PM L-Jet914
calling all 74 1.8 owners reading this thread.
... Nov 21 2021, 11:20 PM wonkipop
calling all 74 1.8 owners reading this thread.
... Nov 22 2021, 02:55 AM Van B @wonkipop
I did your experiment today and here’... Nov 21 2021, 04:12 PM wonkipop
[b]@[url=http://www.914world.com/bbs2/index.php?s... Nov 21 2021, 05:13 PM Van B
[b]@[url=http://www.914world.com/bbs2/index.php?s... Nov 24 2021, 04:23 PM wonkipop
[b]@[url=http://www.914world.com/bbs2/index.php?... Nov 24 2021, 05:17 PM Van B Yeah, this is 48yr old ziebart rustproofing… it ... Nov 21 2021, 11:48 PM L-Jet914
Yeah, this is 48yr old ziebart rustproofing… it... Nov 22 2021, 01:03 AM wonkipop
Yeah, this is 48yr old ziebart rustproofing… it... Nov 22 2021, 02:54 AM wonkipop @[url=http://www.914world.com/bbs2/index.php?showu... Nov 26 2021, 04:13 PM Van B I want more air through the Aux Air Valve… as in... Nov 26 2021, 05:11 PM wonkipop
I want more air through the Aux Air Valve… as i... Nov 27 2021, 02:59 AM StarBear
I want more air through the Aux Air Valve… as ... Nov 27 2021, 09:09 AM Van B I don't really have a process for the 914, but... Nov 27 2021, 09:16 AM Van B Just did a little test and I figured I would repor... Nov 27 2021, 11:55 AM wonkipop
Just did a little test and I figured I would repo... Nov 27 2021, 04:30 PM StarBear :) Onward! Nov 27 2021, 12:52 PM Van B We use RON+MON/2 here in the states. That’s why ... Nov 27 2021, 05:59 PM Van B Just a short update for the record:
I had noticed ... Dec 12 2021, 07:37 PM wonkipop had that very chat today over lunch with mike.
he ... Dec 13 2021, 03:04 AM wonkipop there is probably only two other things that can i... Dec 13 2021, 03:22 AM Rob-O I've kinda been lurking this thread for awhile... Dec 13 2021, 03:00 PM Van B You definitely been saving up your posts lol! ... Dec 13 2021, 07:13 PM wonkipop to expand on the AAV a bit.
and i realise that rig... Dec 13 2021, 07:44 PM emerygt350 He was describing movement on the advance/retard p... Dec 13 2021, 08:15 PM wonkipop from what Van is describing it does not sound like... Dec 13 2021, 11:48 PM emerygt350 It's been ages, so you might have done this al... Dec 14 2021, 05:02 AM Van B
It's been ages, so you might have done this a... Dec 14 2021, 07:21 PM wonkipop
It's been ages, so you might have done this ... Dec 14 2021, 07:26 PM Van B
[quote name='Van B' post='2966949' date='Dec 14 2... Dec 14 2021, 07:33 PM wonkipop
It's been ages, so you might have done this ... Dec 14 2021, 08:10 PM emerygt350 I found that my trigger points and bearings were a... Dec 14 2021, 08:16 PM Van B
I found that my trigger points and bearings were ... Dec 14 2021, 08:45 PM wonkipop i've gotten this far with the idea of rebuildi... Dec 14 2021, 03:04 PM wonkipop attached some stuff for @Van B.
first.
testing ... Dec 14 2021, 07:20 PM Van B Thanks @[url=http://www.914world.com/bbs2/index.p... Dec 14 2021, 07:28 PM wonkipop
Thanks @[url=http://www.914world.com/bbs2/index.... Dec 14 2021, 07:36 PM Van B Also, can anyone tell me why the dual relay has a ... Dec 14 2021, 07:31 PM wonkipop got the same plastic relay.
(think these are repla... Dec 14 2021, 07:47 PM wonkipop an original type relay.
same "rats nest... Dec 14 2021, 07:57 PM emerygt350 I meant how much vacuum the engine is pulling.
... Dec 14 2021, 08:06 PM wonkipop
I meant how much vacuum the engine is pulling.
... Dec 14 2021, 08:17 PM emerygt350
I meant how much vacuum the engine is pulling.
... Dec 14 2021, 08:24 PM wonkipop
[quote name='wonkipop' post='2966981' date='Dec 1... Dec 14 2021, 08:41 PM Van B Yeah so, little to no vacuum while cranking, then ... Dec 14 2021, 08:43 PM wonkipop
Yeah so, little to no vacuum while cranking, then... Dec 14 2021, 08:52 PM Van B I got oil leaks from everywhere. Most are just wee... Dec 14 2021, 09:10 PM wonkipop i think i got my head around what emory is getting... Dec 14 2021, 09:39 PM wonkipop this is where my thinking is at Van.
and i will r... Dec 15 2021, 12:47 AM Van B If you look at the bottom of the summit link I sen... Dec 15 2021, 05:24 PM Rob-O
Yeah so, little to no vacuum while cranking, the... Dec 15 2021, 08:43 PM wonkipop
[quote name='wonkipop' post='2967013' date='Dec 1... Dec 16 2021, 12:32 AM Van B Thanks Rob.
Distributor was never gummed up. Advan... Dec 15 2021, 09:45 PM wonkipop @Van B & [b]@[url=http://www.914world.com/bb... Dec 16 2021, 12:25 AM Van B
[b]@[url=http://www.914world.com/bbs2/index.php?s... Dec 16 2021, 06:16 PM emerygt350 Yeah, don't do the console unless you need som... Dec 16 2021, 08:13 PM StarBear
[b]@[url=http://www.914world.com/bbs2/index.php?... Dec 16 2021, 08:42 PM wonkipop
[quote name='Van B' post='2967455' date='Dec 16 2... Dec 16 2021, 09:09 PM emerygt350 Just thought I would post my warm up.
Starting (40... Dec 17 2021, 09:28 AM Van B That’s with your manual valve right?
Looks just ... Dec 17 2021, 07:29 PM emerygt350
That’s with your manual valve right?
Looks just... Dec 17 2021, 07:48 PM  |
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