 1.8 L-Jet AAR No power ? |
|
|
|
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. |
|
|
| pete000 |
 Apr 20 2016, 11:20 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 1,885 Joined: 23-August 10 From: Bradenton Florida Member No.: 12,094 Region Association: South East States  |
I am experiencing some idle issues with my 74 1.8 L-Jet. The idle is high for about 20 minutes and then comes down to around 800 rpm once the engine is good and hot. Up until then it will idle around 1400 rpms. I assumed there was a vacuum leak so I went through everything and even did a pressurized smoke leak test. No leaks.
Next up was the AAR. I have collected three and bench tested all of them. They all close up in around 3 minutes which seems about right. All work. I tried one afeter the other and same results. I thought about it for a bit and it seems once the engine is hot enough it closes the AAR from the heat. This lead me to test the voltage to the AAR and yup NO POWER ! Harness looks fine. Any suggestions where to start tracing this? (IMG:style_emoticons/default/idea.gif) I am currently driving the car with out the AAR and it has idle trouble for about 3 to 5 minutes, after that seems pretty stable. |
   |
 
|
  |
Replies
| timothy_nd28 |
Apr 21 2016, 11:35 AM
Post
#2
|
|
Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
|
Odd, but you can check the continuity from the dual relay at either pins 88d or 88c to one of the pins at the aux air valve connector. Once you confirm 0 ohms, you can proceed with the other pin on the aux air valve connector to pin 34 at the ECU connector, again 0 ohms is what you are looking for.
|
|
|
|
Posts in this topic
pete000 1.8 L-Jet AAR No power ? Apr 20 2016, 11:20 PM
catsltd I replaced my throttle return spring on my throttl... Apr 21 2016, 08:20 AM timothy_nd28 :agree: all good things to check. I also had er... Apr 21 2016, 08:38 AM
pete000
:agree: all good things to check. I also had e... Apr 21 2016, 11:24 AM |
3 User(s) are reading this topic (3 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 27th September 2024 - 01:21 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.