 I need some testing help, Free Parts! |
|
|
|
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. |
|
|
| McMark |
 Nov 25 2014, 07:32 PM
Post
#1
|
|
914 Freak!  Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
While playing with my MicroSquirt kits I found that the stock CHT has a quite frequent failure rate. I used a stock unit on the motor I installed and on my trip to Portland I realized it was giving lots of erroneous readings. When I got back I installed another one, and it was fine for awhile, but eventually started giving the same erroneous readings. I found a modern electronic component which replicates the stock resistance/temp curve of the CHT sensor and isn't prone to vibration/heat damage like the stock unit (including new replacements). I would like to find someone who drives their car enough to notice if there is a difference.
Who's got stock D-Jet installed on their system, drives somewhat regularly and is willing to do some testing? (IMG:style_emoticons/default/beerchug.gif) |
   |
 
|
  |
Replies
| 914werke |
Nov 26 2014, 11:57 AM
Post
#2
|
|
"I got blisters on me fingers" Group: Members Posts: 10,052 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest 
|
Mark can you elaborate?
Were these variances something you noticed looking at a map or glitches in drivability that led you to the CHT & observe issues with their resistance/temp curve? |
|
|
|
| McMark |
Nov 26 2014, 03:51 PM
Post
#3
|
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
QUOTE(rdauenhauer @ Nov 26 2014, 09:57 AM)  Mark can you elaborate? Were these variances something you noticed looking at a map or glitches in drivability that led you to the CHT & observe issues with their resistance/temp curve? Since I'm running MicroSquirt I can graph the readings. I was getting a bit of bucking, each time the reading jumped it would squirt a bunch of fuel. The first one stopped reading all together and just had high resistance, so the engine always thought it was cold. Thankfully I had my laptop with me so I just turned off the cold-start enrichment and ignored the sensor. The second failure was similar, but never got to the worst case scenario. It would buck occasionally - just a quick miss and then back to normal. |
|
|
|
Posts in this topic
McMark I need some testing help Nov 25 2014, 07:32 PM
rick 918-S <_< Not in the snow <_< But Cool... Nov 25 2014, 07:37 PM 914_teener I.ll help. Nov 25 2014, 07:40 PM
McMark
I.ll help.
Sweet PM sent so I know where to ship... Nov 25 2014, 07:57 PM ConeDodger For once, this isn't me... :D Nov 25 2014, 07:48 PM eyesright Me?
I have a '76 2.0L (weren't they all t... Nov 25 2014, 08:00 PM BeatNavy I may be able to help. 72, 1.7L with stock D-Jet.... Nov 25 2014, 07:57 PM hot_shoe914 I have a 73 and a 74 if you need more help.
Shoe... Nov 25 2014, 09:54 PM The Cabinetmaker I run djet and at the present time is my only tran... Nov 26 2014, 05:27 AM ClayPerrine If you are willing to use an L-Jet system, I can p... Nov 26 2014, 05:53 AM McMark Cool, four testers should be sufficient to know if... Nov 26 2014, 11:33 AM Marty Yeoman Mark,
You can send one my way if you want one more... Nov 26 2014, 03:09 PM Jake Raby I've observed this with newer sensors as well.... Nov 26 2014, 06:00 PM Chris Pincetich WHAT?!?!? You mean chasing the TPS and vac... Nov 27 2014, 10:22 PM Jake Raby Something else I noted with the stock CHT is the r... Nov 27 2014, 11:24 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 9th May 2024 - 02:47 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.