 What's your A/F on Overrun?, 'Nother D-Jet A/F Question |
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| BeatNavy |
 Mar 12 2017, 12:28 PM
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Certified Professional Scapegoat  Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region 
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For those with D-Jet, what are you typically seeing for A/F ratio on a medium to hard overrun? Based on what I've read here mine seems too rich - like in 10's and 11's. Once the RPM's drop closer to idle it bounces back up to normal idle A/F ratios. Does A/F on overrun even matter?
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Posts in this topic
BeatNavy What's your A/F on Overrun? Mar 12 2017, 12:28 PM
mgphoto
For those with D-Jet, what are you typically seei... Mar 12 2017, 04:23 PM BeatNavy Good. No popping, if that's what you're a... Mar 12 2017, 04:44 PM
mgphoto
Good. No popping, if that's what you're ... Mar 12 2017, 05:22 PM BeatNavy Not particularly. That's sort of been the roo... Mar 12 2017, 06:13 PM mgphoto
Not particularly. That's sort of been the ro... Mar 12 2017, 11:55 PM BeatNavy
The issue is not your temp sensor, it's the m... Mar 13 2017, 03:41 AM brant
Not particularly. That's sort of been the ro... Mar 13 2017, 12:19 PM falcor75 Could leaking injectors cause your WB to read rich... Mar 13 2017, 04:23 AM r_towle have you ever replaced the cold start injector? Th... Mar 13 2017, 11:16 AM BeatNavy
have you ever replaced the cold start injector? T... Mar 13 2017, 12:07 PM BeatNavy I did some more looking around today, and I think ... Mar 19 2017, 11:06 AM BeatNavy
I'll probably also try plugging off the cold ... Mar 19 2017, 12:29 PM nordfisch
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Not sure if the higher vacuum level at higher... Sep 29 2018, 03:47 PM Olympic 914 Did you ever find out any more about this ?
I am ... Aug 15 2017, 06:05 AM Frank S
Did you ever find out any more about this ?
I am... Sep 27 2018, 10:03 AM BeatNavy No, not really. I did refurb the throttle body so... Aug 15 2017, 06:50 AM saigon71 I can't speak to your A/F on overrun. I had my... Aug 15 2017, 07:18 AM Philip W. My AF seems to stay around 12.-12.5 I believe - de... Aug 15 2017, 07:32 AM BeatNavy Good question, Bob. In my case I am running stock... Aug 15 2017, 07:36 AM Mark Henry
Does A/F on overrun even matter?
Overrun and A... Aug 15 2017, 08:11 AM Olympic 914
Does A/F on overrun even matter?
Overrun and ... Aug 15 2017, 09:23 AM Mark Henry
[quote name='Mark Henry' post='2517213' date='Aug... Aug 15 2017, 11:31 AM 914_teener It depends on the ecu for fuel cut off. Aug 15 2017, 11:39 AM Mark Henry
It depends on the ecu for fuel cut off.
But it w... Aug 15 2017, 11:47 AM 914_teener
It depends on the ecu for fuel cut off.
But it ... Aug 15 2017, 11:57 AM barefoot IIRC D-jet is designed to cut off fuel on closed t... Aug 15 2017, 11:48 AM BeatNavy My understanding is that the TPS detects an idle s... Aug 15 2017, 12:17 PM 914_teener
My understanding is that the TPS detects an idle ... Aug 15 2017, 12:36 PM Philip W.
My understanding is that the TPS detects an idle... Aug 15 2017, 01:46 PM 914_teener
[quote name='914_teener' post='2517302' date='Aug... Aug 15 2017, 01:58 PM Olympic 914 Rob
What ECU are you running?
You said that yo... Aug 15 2017, 12:29 PM BeatNavy
Rob
What ECU are you running?
You said that y... Aug 15 2017, 12:36 PM BeatNavy Just closing the loop. I actually have an 044 ECU... Aug 15 2017, 04:59 PM Dave_Darling Very early cars would cut fuel on overrun, but tha... Aug 15 2017, 08:19 PM Mark Henry I can't see a system that has no fuel cut havi... Aug 16 2017, 08:28 AM Philip W. Mark I agree, this is what I was seeing and why I ... Aug 16 2017, 09:00 AM Mark Henry I was thinking more on what Dave said, although th... Aug 16 2017, 09:12 AM mgphoto According to Porsche/VW the fuel cut off caused th... Aug 17 2017, 07:19 PM BeatNavy I played around with my MPS, decal valve, tuning a... Sep 27 2018, 11:20 AM Olympic 914
I played around with my MPS, decal valve, tuning ... Sep 27 2018, 04:03 PM BeatNavy
I played around with my MPS, decal valve, tuning... Sep 28 2018, 05:48 AM Frank S AFR of 12 will not hurt the engine and is reasonab... Sep 27 2018, 11:50 AM BeatNavy
AFR of 12 will not hurt the engine and is reasona... Sep 27 2018, 12:03 PM Frank S
AFR of 12 will not hurt the engine and is reason... Sep 27 2018, 12:09 PM cgnj Hi,
just saw this. A while ago I had a PM exchange... Sep 27 2018, 03:18 PM  |
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