 D-jet troubleshooting, Only one item left on my list! |
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| saigon71 |
 Mar 16 2014, 04:06 PM
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#1
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Advanced Member  Group: Members Posts: 2,006 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region 
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My 1974 2.0 D-jet is running very strong, but there were two lingering issues with the FI that I wanted to address over the winter:
1. A severe idle "hunt." The engine would rush up to about 1200 RPM, then nearly stall...repeat cycle. 2. Every once in a while the car would buck, most notably at highway speeds...it wasn't bad, just annoying. Last week I installed a new circuit board in the TPS purchased from Dave Sprinkle a few years back. It was calibrated according to the Pelican tech article using an ohmmeter. I took a 210 mile road trip over the weekend to test things out. The car now idles perfectly through the entire warm-up sequence. Thanks Dave! (IMG:style_emoticons/default/beerchug.gif) The problem is that I still have the same bucking issue. All my research points to the TPS. Any suggestions on what to check next? |
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| boxsterfan |
Mar 16 2014, 09:17 PM
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#2
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
My car has the "idle hunt" problem on warmup. But once warmed up, the idle is perfect at 900-950RPM.
I thought the "idle hunt" during warm-up was related to bad CHT sensor? $16 part. |
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Posts in this topic
saigon71 D-jet troubleshooting Mar 16 2014, 04:06 PM
914_teener Fuel pressure. Mar 16 2014, 04:36 PM mepstein I had a bucking issue. sometimes bad, sometimes no... Mar 16 2014, 06:27 PM
saigon71
My car has the "idle hunt" problem on w... Mar 17 2014, 06:24 AM watsonrx13 I have a '74 2.0 D-jet also. My runs very well... Mar 17 2014, 06:04 AM Philip W.
I have a '74 2.0 D-jet also. My runs very wel... Mar 17 2014, 06:25 AM brant
[quote name='watsonrx13' post='2011990' date='Mar... Mar 17 2014, 03:22 PM larss
To both of you who richened the mixture by enri... Mar 17 2014, 11:16 PM Philip W. I have a new wide band installed and will be testi... Mar 18 2014, 08:15 PM larss
My 1974 2.0 D-jet is running very strong, but the... Mar 17 2014, 06:32 AM Philip W.
My 1974 2.0 D-jet is running very strong, but th... Mar 17 2014, 08:05 AM r_towle
My 1974 2.0 D-jet is running very strong, but the... Mar 17 2014, 10:40 AM plas76targa Bob,
i get the same bucking issues. It's usual... Mar 17 2014, 11:36 AM jsayre914 Bob,
I fixed this issue by removing the trigger p... Mar 17 2014, 01:58 PM davesprinkle The interdigitated traces (love that word, I found... Mar 18 2014, 07:44 PM saigon71
The interdigitated traces (love that word, I foun... Mar 19 2014, 07:28 PM watsonrx13 Thanks for all of the suggestions. I'm going t... Mar 20 2014, 06:51 PM watsonrx13 I finally purchased and installed a new Bosch ... Apr 21 2014, 06:46 AM 914itis Bob,
Some may remember my long thread after insta... Apr 21 2014, 12:46 PM 914_teener
Bob,
Some may remember my long thread after inst... Apr 21 2014, 07:32 PM zymurgist Wow, good info in the linked thread. Mine is doin... Apr 21 2014, 08:49 PM luskesq Timing (and it wasn't off by much) caused my i... Apr 21 2014, 09:08 PM watsonrx13 Well finally had a chance to check the vacuum adva... May 10 2014, 10:39 AM r_towle The distributor has never been cleaned...well it... May 10 2014, 10:45 AM watsonrx13
The distributor has never been cleaned...well it... May 10 2014, 12:14 PM type47 I checked the vacuum advance on a distributor on a... May 10 2014, 10:51 AM r_towle
I checked the vacuum advance on a distributor on ... May 10 2014, 10:52 AM type47
I checked the vacuum advance on a distributor on... May 10 2014, 04:06 PM The Cabinetmaker One port is advance, the other is retard. May 10 2014, 12:19 PM boxsterfan I think your vacuum line (as pictured) is hooked u... May 10 2014, 02:08 PM r_towle Yup, one is advance, one is retard.
Retard was lef... May 10 2014, 02:12 PM watsonrx13 Rich thanks for the reply, that explains everythin... May 10 2014, 03:46 PM The Cabinetmaker Where does the hose with the clamp go to? It's... May 10 2014, 04:06 PM 914_teener I really think you should yank that dizzy out and ... May 10 2014, 11:06 PM watsonrx13 Thanks for everyone's suggestions. I have pull... May 11 2014, 08:08 AM r_towle Remove the other two screws and pull out the actua... May 11 2014, 08:51 AM watsonrx13 Rich, which (2) screws are you talking about remov... May 11 2014, 09:19 AM watsonrx13 OK, I reread your reply and did the following
1. ... May 11 2014, 09:44 AM Dtjaden Carb or brake cleaner would work well. The RS clea... May 11 2014, 10:08 AM watsonrx13 Cleaned parts. BTW, I added a small amount of grea... May 11 2014, 10:23 AM watsonrx13 Successful test drive. The engine idles great and ... May 11 2014, 10:52 AM r_towle Was at moms today.
You found it....
I use whateve... May 11 2014, 04:01 PM |
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