GB: D-Jet ECU testing session UPDATE |
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GB: D-Jet ECU testing session UPDATE |
JeffBowlsby |
Nov 8 2022, 09:34 AM
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#1
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
I am holding a D-Jet ECU testing session on November 26, using my VW-128 tester. This is for the 1.7L and 2.0L cars only. The tester is an interposer configuration and I use an NOS 049 MPS interposed with your ECU to test them together to evaluate all ECU functions.
6 ECUs are currently in the queue for testing. The cost is $125. + return shipping cost with a brief report of what was tested and its results. I do these in batches to minimize set-up time and cost. If you send it to me by Nov 26, I can include it. Paypal preferred, checks also accepted. If interested send me your zip code and email address by PM for a full quote with shipping cost. |
friethmiller |
Nov 8 2022, 01:13 PM
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#2
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Senior Member Group: Members Posts: 624 Joined: 10-February 19 From: Austin, TX Member No.: 22,863 Region Association: Southwest Region |
Jeff, I've got 4 ECUs that need testing. Will send in one box. PM with Zip sent.
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TX914 |
Nov 9 2022, 06:45 AM
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#3
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Alan-B Group: Members Posts: 177 Joined: 27-July 14 From: USA Member No.: 17,689 Region Association: None |
Does testing include the CO adjustment knob on the ECU? I have an ECU from a 76 (0 280 000 052) where the knob seems to have no effect unless full clockwise (TPS properly adjusted). If testing indicates bad, can that potentiometer be replaced? |
JeffBowlsby |
Nov 9 2022, 10:34 AM
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#4
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Does testing include the CO adjustment knob on the ECU? I have an ECU from a 76 (0 280 000 052) where the knob seems to have no effect unless full clockwise (TPS properly adjusted). If testing indicates bad, can that potentiometer be replaced? The VW1218 tests the ECU in functional blocks (circuits). The idle AFR pot is part of one of the circuits tested, but the pot is not discretely tested in this process. If that circuit block is found to be defective then the pot can be removed, tested and replaced if its bad, but I do not do ECU repairs. |
dr914@autoatlanta.com |
Nov 9 2022, 11:40 AM
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#5
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914 Guru Group: Members Posts: 8,052 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
Jeff can you actually test a control unit without also having it installed on the car? The old tester we had needed to be hooked up inbetween the control unit and the the factory control unit wiring harness.
I am holding a D-Jet ECU testing session on November 26, using my VW-128 tester. This is for the 1.7L and 2.0L cars only. The tester is an interposer configuration and I use an NOS 049 MPS interposed with your ECU to test them together to evaluate all ECU functions. 6 ECUs are currently in the queue for testing. The cost is $125. + return shipping cost with a brief report of what was tested and its results. I do these in batches to minimize set-up time and cost. If you send it to me by Nov 26, I can include it. Paypal preferred, checks also accepted. If interested send me your zip code and email address by PM for a full quote with shipping cost. |
JeffBowlsby |
Nov 9 2022, 12:00 PM
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#6
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
[quote name='dr914@autoatlanta.com' date='Nov 9 2022, 09:40 AM' post='3040448']
Jeff can you actually test a control unit without also having it installed on the car? The old tester we had needed to be hooked up inbetween the control unit and the the factory control unit wiring harness. They are tested as installed into a D-Jet car. All the testers require to be interposed into the FI system. |
rjames |
Nov 9 2022, 03:34 PM
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#7
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I'm made of metal Group: Members Posts: 4,110 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Great service you're offering Jeff.
On a related note, I would love to hear recommendations based on actual experience for where the ECUs can be rebuilt. I have one that is bad (causes the car to go rich and stall) but testing may not reveal anything wrong because it only happens intermittently. As the ECUs are getting harder to find I'd like to try and get it repaired so I have a spare. Although narrowing down what needs to be fixed on it would probably be difficult given the issue is intermittent. |
JeffBowlsby |
Nov 28 2022, 06:19 PM
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#8
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Had a great turn out for this testing session. I ended up with 17 D-Jet ECUs in total to evaluate. The VW1218 tester does an excellent job of evaluating the ECU functions in 9 separate sectors and tests the sectors individually. I also provide a summary report indicating which sectors are good/bad, but basically for each ECU with a bad sector, the tester manual recommends that the ECU be replaced.
4 ECUs turned out to have one or more bad sectors, but 3 of the bad ones were previously known to be defective and were from my stash. Thanks to everyone who participated I hope you will find peace of mind knowing whether your ECU is good (or bad) and the information generally useful. One thing that was interesting was that one of the ECUs that had one or more bad sectors actually functioned well...because I ran my 2.0L with it. So just because you might think an ECU is good...it might not be. I will plan another one of these sessions in the spring for anyone interested. Attached image(s) |
Quinn Moore |
Nov 29 2022, 07:33 AM
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#9
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Qmoore Group: Members Posts: 116 Joined: 13-July 21 From: Lake Geneva, WI Member No.: 25,718 Region Association: Upper MidWest |
Great, I'll be on the spring run. (Missed this one, due to car being in the shop).
(IMG:style_emoticons/default/flag.gif) QM |
rudedude |
Nov 29 2022, 08:21 AM
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#10
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Senior Member Group: Members Posts: 515 Joined: 1-January 05 From: minneapolis, mn Member No.: 3,387 Region Association: Upper MidWest |
Bosch D-Jetronic factory fuel injection tester. There is one of these for sale on craigslist near where I live if anyone is interested. Not to take anything away from Jeff's service but I can't believe there are many left.
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friethmiller |
Nov 29 2022, 09:00 AM
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#11
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Senior Member Group: Members Posts: 624 Joined: 10-February 19 From: Austin, TX Member No.: 22,863 Region Association: Southwest Region |
Jeff,
Thanks for offering this service. Just got your message about my ECU (it passed). You are more than welcome to restore my ECU case before sending it back. (IMG:style_emoticons/default/biggrin.gif) Kidding! Looking forward to doing that part myself. |
JeffBowlsby |
Nov 29 2022, 10:52 AM
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#12
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Bosch D-Jetronic factory fuel injection tester. There is one of these for sale on craigslist near where I live if anyone is interested. Not to take anything away from Jeff's service but I can't believe there are many left. The equipment I used for this is actually a Grundig tester AKA VW1218, not Bosch. I have a Bosch tester also but it tests the FI system and it’s components in a different way and does not evaluate the ECU to the level of detail as the VW1218. |
friethmiller |
Nov 29 2022, 11:10 AM
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#13
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Senior Member Group: Members Posts: 624 Joined: 10-February 19 From: Austin, TX Member No.: 22,863 Region Association: Southwest Region |
Any recommendations on cleaning up/restoring the ECU case? I've seen them painted gray but want to keep it unpainted/original.
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TonyA |
Nov 29 2022, 04:49 PM
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#14
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Nachmal Group: Members Posts: 536 Joined: 17-November 16 From: Hilltown PA Member No.: 20,596 Region Association: North East States |
I would like to know that answer as well?
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rjames |
Nov 29 2022, 04:53 PM
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#15
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I'm made of metal Group: Members Posts: 4,110 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
What are the 9 sectors in an ECU?
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friethmiller |
Nov 30 2022, 08:17 AM
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#16
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Senior Member Group: Members Posts: 624 Joined: 10-February 19 From: Austin, TX Member No.: 22,863 Region Association: Southwest Region |
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JeffBowlsby |
Nov 30 2022, 02:15 PM
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#17
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Attached image(s) |
JeffBowlsby |
Nov 30 2022, 02:15 PM
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#18
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
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seanpaulmc |
Jan 25 2023, 05:45 PM
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#19
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Member Group: Members Posts: 348 Joined: 6-December 16 From: Orlando, FL Member No.: 20,649 Region Association: South East States |
Missed this tread entirely! (IMG:style_emoticons/default/headbang.gif)
I have two boxes for your Spring run. Look forward to hearing about it. Thanks, Jeff! -Sean Had a great turn out for this testing session. I ended up with 17 D-Jet ECUs in total to evaluate. The VW1218 tester does an excellent job of evaluating the ECU functions in 9 separate sectors and tests the sectors individually. I also provide a summary report indicating which sectors are good/bad, but basically for each ECU with a bad sector, the tester manual recommends that the ECU be replaced. 4 ECUs turned out to have one or more bad sectors, but 3 of the bad ones were previously known to be defective and were from my stash. Thanks to everyone who participated I hope you will find peace of mind knowing whether your ECU is good (or bad) and the information generally useful. One thing that was interesting was that one of the ECUs that had one or more bad sectors actually functioned well...because I ran my 2.0L with it. So just because you might think an ECU is good...it might not be. I will plan another one of these sessions in the spring for anyone interested. |
emerygt350 |
Jan 25 2023, 09:36 PM
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#20
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Advanced Member Group: Members Posts: 2,403 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Is this going to happen before the salt is off the roads? Also... If something is broken, is there anything that can be done or is it just find a good one?
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