 73 2.0 djet idle problem |
|
|
|
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. |
|
|
| jasons |
 Mar 19 2007, 09:22 AM
Post
#1
|
|
Jackstand Extraordinaire  Group: Members Posts: 2,011 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None  |
Car is a 73 2.0, new TPS, new FI Points, new TS1, existing TS2 (its the 017), all intake runners, hoses, gaskets, and PCV are new, injectors were cleaned and serviced by witchhunter. Also all parts are correct for the 73 2.0. I put a 270ohm resistor in too. Car seems to run lean at idle (I have an air fuel meter).
I had the wrong TS2, because I replaced it with what I thought was the correct replacement. Upon further review, I put the used 017 piece back in. The car had been sitting when I bought it, so I dropped the motor to take care of a few problems, and I refurbed the FI while I was at it. Car seems to have good power and pull hard, but it doesn't seem to idle quite right. It oscillates between, 1000 and less than 500, while the air meter reads lean. Air bleed and the knob both effect idle, but I can't get it to stabilize or richen up on the meter. Also, I have a euro-race header and MSD. Should I play with the resistor or the FPR to richen the car for these parts? |
   |
 
|
  |
Replies
| Bleyseng |
Mar 20 2007, 09:55 PM
Post
#2
|
|
Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Have you checked for vacuum leaks at the usual spots? No vacuum leaks is a must and that stands out too....you really have to check using some sort of either WD40, propane etc.
|
|
|
|
| jasons |
Mar 20 2007, 10:34 PM
Post
#3
|
|
Jackstand Extraordinaire Group: Members Posts: 2,011 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
QUOTE(Bleyseng @ Mar 20 2007, 08:55 PM)  Have you checked for vacuum leaks at the usual spots? No vacuum leaks is a must and that stands out too....you really have to check using some sort of either WD40, propane etc. Checked for vacuum leaks with propane. Doesn't mean I didn't miss something, but I replaced all the hoses (with the German stuff not American heater hoses or some crap), runners, TB gasket, Intake spacer/gaskets, FI seals. There aren't many unknowns, I was pretty thorough. I checked the timing tonight after driving it for about 30 minutes(with the air temp sensor un-plugged). It was advanced a few degrees, so I brought it back to somewhere between 26* and 28*. I say somewhere because, its hard to get a clean read on the mark. Sometimes it walks a little. But it immediately sounded smoother. So, I plugged the air temp sensor back in and dialed the idle to right around 900 or 1000 and it held steady. My friend manages a VW shop, so he picked up one of the VW replacement advance/retard units for me. Its not the exact replacement (NLA), but its better than nothing. I'll try that tomorrow. Hopefully saturday, the mechanic at his shop will have time to put my car on the CO analyzer. |
|
|
|
Posts in this topic
jasons 73 2.0 djet idle problem Mar 19 2007, 09:22 AM
sean_v8_914 does yoour ECU have the mixture potentiometer? Mar 19 2007, 09:37 AM
jasons
does yoour ECU have the mixture potentiometer?
... Mar 19 2007, 09:44 AM Demick First thing - unless your O2 sensor is a wideband ... Mar 19 2007, 11:35 AM jasons
First thing - unless your O2 sensor is a wideband... Mar 19 2007, 12:04 PM Demick Relocated fuel pump shouldn't cause any issues... Mar 19 2007, 12:07 PM 2-OH! Run the engine to operating temp...At this point, ... Mar 19 2007, 02:12 PM jasons
I did time it, but that was when I was using the... Mar 19 2007, 02:18 PM bob174 You do have a good MPS right? Have you pulled a v... Mar 19 2007, 08:01 PM jasons
You do have a good MPS right? Have you pulled a ... Mar 19 2007, 08:56 PM Bleyseng
You do have a good MPS right? Have you pulled a ... Mar 20 2007, 08:37 AM jasons When I had the motor out I checked all the parts a... Mar 20 2007, 09:13 AM Bleyseng
When I had the motor out I checked all the parts ... Mar 20 2007, 04:38 PM jasons
When I had the motor out I checked all the parts... Mar 20 2007, 04:51 PM Dave_Darling Low fuel pressure will cause a lean condition. Tr... Mar 20 2007, 09:33 AM jasons OK so bumping the Fuel Pressure didn't make a ... Mar 20 2007, 03:56 PM pbanders We've been through this drill about a million ... Mar 20 2007, 05:41 PM jasons Brad, I can't tell you how much time I have sp... Mar 20 2007, 06:16 PM Bleyseng How much is the timing mark "walking"? m... Mar 20 2007, 10:40 PM jasons
How much is the timing mark "walking"? ... Mar 20 2007, 10:44 PM Bleyseng There is some up/down play but there shouldn't... Mar 21 2007, 12:02 AM jasons
There is some up/down play but there shouldn... Mar 21 2007, 08:37 AM Gint The Pertronix should have cured *minor* distibutor... Mar 21 2007, 08:47 AM jasons OK so, I installed the new vacuum pod and un-delet... Mar 21 2007, 11:11 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 9th May 2025 - 12:58 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.