 L-jet AFM replaced, but the car won't stay running. (SOLVED) |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| malcolm2 |
 Dec 25 2016, 01:13 PM
Post
#1
|
|
Advanced Member  Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
 |
Update on my post about the BENT AFM. FYI prior to the bending, the car was running great as my daily driver.
I now have a 75 7-pin AFM found on San Diego Craigslist and shipped to TN. I have verified all the proper ohm readings on the connector, fuel pump contacts especially. The flap has full range of motion and the PCB track looks similar to the AFM I removed. The replacement unit is installed as received and the car will only run (and poorly I may add) if I mash the accel pedal to get about 3000 rpms. I had planned to go thru the Itinerant ( http://www.itinerant-air-cooled.com/viewtopic.php?t=7761)process today, but I can't get it to idle. I only got as far as setting the MIXTURE screw to the 4-1/2 turn spot. I do have the new intake elbow on and have tight vacuum line fittings. No vacuum lines appear to be a problem. Triple checking now. Just tinkering around, I opened the idle screw on the TB, but that did not help. What do you think? What is next? Clark |
   |
 
|
Posts in this topic
malcolm2 L-jet AFM replaced Dec 25 2016, 01:13 PM
jim_hoyland Open the relay board and look at the 4 spade conne... Dec 25 2016, 04:16 PM malcolm2 No change at all. It will fire up quickly, But ta... Dec 25 2016, 04:36 PM jim_hoyland Disconnect the fuel line and check for flow - care... Dec 25 2016, 05:04 PM malcolm2 I have an in-line fuel press guage. Plenty of pres... Dec 25 2016, 06:50 PM
Mark Henry
I have an in-line fuel press guage. Plenty of pre... Dec 28 2016, 06:48 AM malcolm2
I have an in-line fuel press guage. Plenty of pr... Dec 28 2016, 08:44 AM timothy_nd28 Before adjusting the air flow meter, you should do... Dec 26 2016, 01:00 PM jim_hoyland :agree:
And : Be sure the resistor pack does not... Dec 26 2016, 01:55 PM malcolm2 Thanks gentlemen. Gives me plenty of things to ch... Dec 26 2016, 02:43 PM ClayPerrine To quote my father "What was the last thing ... Dec 26 2016, 09:41 PM malcolm2
To quote my father [i][u]"What was the last... Dec 27 2016, 08:26 AM ClayPerrine
To quote my father [i][u]"What was the las... Dec 27 2016, 05:51 PM McMark The AFM could be bad or maladjusted as well. Fuel... Dec 28 2016, 08:47 AM malcolm2
The AFM could be bad or maladjusted as well. Fue... Dec 28 2016, 08:55 AM jim_hoyland Perhaps you could borrow a known "good" ... Dec 28 2016, 09:23 AM malcolm2
Perhaps you could borrow a known "good... Dec 28 2016, 09:50 AM McMark Yup, plugged in and fired up.
I don't know of... Dec 28 2016, 09:26 AM ClayPerrine I have a factory calibration tool for the AFM in m... Dec 28 2016, 10:27 PM malcolm2 BACK TO 914 TROUBLESHOOTING: I finally carved out... Jan 3 2017, 07:38 AM falcor75 I have never seen those metal gaskets used before? Jan 3 2017, 08:04 AM malcolm2
I have never seen those metal gaskets used before... Jan 3 2017, 11:36 AM jtprettyman
Perhaps you could borrow a known "good... Jan 3 2017, 12:50 PM McMark Just the phenolic block. The metal seals are inde... Jan 3 2017, 04:11 PM malcolm2 HEY HEY, I am back. Spent the last 2 weeks workin... Jan 18 2017, 07:30 PM Dave_Darling The spacer should have paper on both sides of it. ... Jan 18 2017, 09:14 PM malcolm2 These are Victor-Rienz. Looks like paper on each s... Jan 18 2017, 09:29 PM malcolm2 Morning :bump: Jan 19 2017, 06:21 AM Rob-O So I've been fighting with a very similar prob... Jan 19 2017, 09:52 AM Rob-O
These are Victor-Rienz. Looks like paper on each ... Jan 19 2017, 09:59 AM malcolm2 Sometime in the last few months, I installed the 9... Jan 19 2017, 12:46 PM timothy_nd28 You forgot to add the units to your graph :D Jan 19 2017, 12:57 PM malcolm2
You forgot to add the units to your graph :D
... Jan 19 2017, 01:38 PM Rob-O
You forgot to add the units to your graph :D
... Jan 19 2017, 01:25 PM malcolm2 And now back to the subject....
This is the 1/2 s... Jan 19 2017, 01:51 PM Rob-O I would think so. Looks sooty to me but I'm n... Jan 19 2017, 02:53 PM timothy_nd28 I think Clark did something sneaky by quickly addi... Jan 19 2017, 04:30 PM malcolm2 Gracias Timothy,
Adding that graph was not easy, ... Jan 19 2017, 04:53 PM malcolm2 As luck would have it, I got everything back toget... Jan 21 2017, 04:05 PM malcolm2
BROKEN WIRE.... I decided to retrace my steps a... Jan 21 2017, 05:32 PM malcolm2 I am searching for a 7 pin AFM. I saw on a post t... Jan 22 2017, 01:17 PM malcolm2 I am moving slowly on this problem.
I never hea... Jan 26 2017, 06:16 PM malcolm2 God could not help either. Pretty much the same p... Jan 26 2017, 06:35 PM Root_Werks A vacuum tester is an excellent way to ensure ther... Jan 27 2017, 02:19 PM malcolm2 a vacuum tester sounds AWESOME. How does it work,... Jan 27 2017, 05:28 PM zach914v8
a vacuum tester sounds AWESOME. How does it work... Jan 27 2017, 05:37 PM malcolm2
Vacuum tester
No tool box is complete without ... Jan 27 2017, 07:35 PM malcolm2 I started the car this morning, messed with the di... Jan 28 2017, 06:09 PM BillC If your valves check out, you may want to look int... Jan 28 2017, 07:05 PM malcolm2 BACK TO BUSINESS..... I have finally checked, adju... Jan 31 2017, 01:54 PM zach914v8
BACK TO BUSINESS..... I have finally checked, adj... Jan 31 2017, 06:04 PM malcolm2
He asked me if you popped the top on the AFM and... Jan 31 2017, 09:00 PM zach914v8
He asked me if you popped the top on the AFM an... Jan 31 2017, 09:04 PM jim_hoyland Have you checked the continuity of all the wires g... Jan 31 2017, 06:24 PM timothy_nd28 I was on the phone with him, turns out that his pl... Jan 31 2017, 09:02 PM zach914v8
I was on the phone with him, turns out that his p... Jan 31 2017, 09:06 PM JB620 So take this for what it's worth, which is not... Jan 31 2017, 09:19 PM malcolm2
So take this for what it's worth, which is no... Jan 31 2017, 09:27 PM zach914v8
So take this for what it's worth, which is n... Jan 31 2017, 09:37 PM malcolm2
Clark any decent shop has a smoke machine for e... Jan 31 2017, 09:49 PM zach914v8
Clark any decent shop has a smoke machine for ... Jan 31 2017, 09:57 PM malcolm2 Here are the plugs. I think they have about 20K m... Jan 31 2017, 09:19 PM zach914v8 They look a bit rich, but I not seeing anything he... Jan 31 2017, 09:26 PM jim_hoyland Is the oil filler gasket is good shape ? Jan 31 2017, 09:35 PM Rob-O Check to ensure that the plugs are on the injector... Jan 31 2017, 11:15 PM timothy_nd28 Clark, I'm all for temporary isolating auxilia... Feb 1 2017, 12:09 AM malcolm2 Tim, you are good.... I wondered if you would noti... Feb 1 2017, 09:08 AM zach914v8 I have never seen any one rig a smoke tester out o... Feb 1 2017, 09:29 AM malcolm2 Might try the VAPE shop.... wouldn't that be s... Feb 1 2017, 09:43 AM zach914v8
Might try the VAPE shop.... wouldn't that be ... Feb 1 2017, 09:59 AM malcolm2 WOW, what did we do before YouTube. I did a Smoke... Feb 2 2017, 09:17 AM malcolm2 rBT1FP131Kw
As I mentioned, I now have made a cru... Feb 3 2017, 04:41 PM zach914v8
rBT1FP131Kw
As I mentioned, I now have made a cr... Feb 3 2017, 04:51 PM zach914v8
[quote name='malcolm2' post='2450938' date='Feb 3... Feb 3 2017, 04:57 PM malcolm2 I think you were 1st to mention the smoke idea, so... Feb 3 2017, 04:57 PM malcolm2 I should have pulled the hose and showed the flow.... Feb 3 2017, 05:00 PM jim_hoyland Do you have a good gasket between the throttle bod... Feb 3 2017, 06:06 PM malcolm2 Jim, yes there is a seal. It was new in 2013. I ... Feb 4 2017, 11:59 AM Dave_Darling Take out the dipstick and look at the distance bet... Feb 4 2017, 01:45 PM malcolm2 I think we can OFFICIALLY close this posting. Wha... Feb 4 2017, 05:04 PM zach914v8 Clark brother, I am seriously glad you got this th... Feb 4 2017, 05:59 PM jim_hoyland Great news ! What does the 20 tooth AFM adjust... Feb 4 2017, 06:03 PM malcolm2
Great news ! What does the 20 tooth AFM adjus... Feb 4 2017, 06:57 PM jim_hoyland Interesting; after upgrading recently to 2L and in... Feb 4 2017, 07:01 PM timothy_nd28 Adjusting the airflow meter is something that I wo... Feb 4 2017, 07:07 PM jim_hoyland Thanks for the explanation- Feb 4 2017, 07:13 PM KELTY360 :trophy: :trophy: :trophy:
A tribute to persis... Feb 4 2017, 07:17 PM Rob-O Wow, very nice! Glad you found that leak.
Wh... Feb 4 2017, 09:04 PM malcolm2
Wow, very nice! Glad you found that leak.
W... Feb 5 2017, 07:37 AM Porschef Throttle body gasket was one of my leaks. Glad you... Feb 5 2017, 07:41 AM malcolm2 The leak was so bad that the car would not run. M... Feb 5 2017, 07:50 AM Rob-O Well, I hope that's the last of the major trou... Feb 5 2017, 07:58 AM ndfrigi wow big thanks again for various members here espe... Feb 5 2017, 09:30 AM malcolm2
wow big thanks again for various members here esp... Feb 5 2017, 06:29 PM ndfrigi
wow big thanks again for various members here es... Feb 5 2017, 07:49 PM pete000 I have been playing with a AFM on my L-Jet and am ... Feb 5 2017, 11:29 PM  |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 4th June 2024 - 12:20 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.