 No injector current on 2&3 |
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| peteinjp |
 Dec 18 2021, 03:14 AM
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#1
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Member  Group: Members Posts: 201 Joined: 15-July 21 From: Japan Member No.: 25,723 Region Association: None 
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Hello all-
I have a 71 914 basket case and am working on getting it to run. No injector signal for 2&3 and I have tried 2 ecu's with the same results. Any thoughts as to what might cause this? Seems unlikely that its the same issue with 2 ecu's.... but at this point I may have to go carbs until I have the time work though all the injection issues. Pete |
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| emerygt350 |
Dec 18 2021, 05:54 AM
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#2
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Have you checked your trigger points and the attachment to the distributor? 2 and 3, if I remember correctly, fire together so if the points are not good or the connection to them is messed up....
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| peteinjp |
Dec 18 2021, 07:06 AM
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#3
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Member Group: Members Posts: 201 Joined: 15-July 21 From: Japan Member No.: 25,723 Region Association: None
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Thanks- I'll look into that. The wiring is a total rats nest so that is entirely possible.
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| Olympic 914 |
Dec 18 2021, 07:13 AM
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#4
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Group: Members Posts: 1,667 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States
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Also make sure your ground wires are attached to the triple spade connector on top of the engine.
It may be hidden under other FI parts. |
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| IronHillRestorations |
Dec 18 2021, 08:51 AM
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#5
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I. I. R. C. Group: Members Posts: 6,717 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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I'm going to say it's trigger points
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| 914Mels |
Dec 18 2021, 06:38 PM
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#6
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Member Group: Members Posts: 357 Joined: 20-June 11 From: Santee Member No.: 13,221 Region Association: Southern California |
QUOTE(peteinjp @ Dec 18 2021, 01:14 AM)  Hello all- I have a 71 914 basket case and am working on getting it to run. No injector signal for 2&3 and I have tried 2 ecu's with the same results. Any thoughts as to what might cause this? Seems unlikely that its the same issue with 2 ecu's.... but at this point I may have to go carbs until I have the time work though all the injection issues. Pete Try reversing the connector at the distributor for the trigger points, if 1&4 go away you're on the right track. I'd look at the wire ends also for broken wires. |
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| peteinjp |
Dec 20 2021, 02:40 AM
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#7
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Member Group: Members Posts: 201 Joined: 15-July 21 From: Japan Member No.: 25,723 Region Association: None
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All good tips - thanks all! The distributor is out and will check the trigger to see if its working properly. Then its on to checking the M.A.P. sensor....
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| emerygt350 |
Dec 20 2021, 06:13 AM
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#8
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
QUOTE(peteinjp @ Dec 20 2021, 03:40 AM) All good tips - thanks all! The distributor is out and will check the trigger to see if its working properly. Then its on to checking the M.A.P. sensor.... MPS isn't injector specific, if that is what you mean by MAP. It just changes duration of firing across the board. No way it could result in the loss of a bank. |
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| peteinjp |
Dec 22 2021, 08:29 PM
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#9
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Member Group: Members Posts: 201 Joined: 15-July 21 From: Japan Member No.: 25,723 Region Association: None
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Yes- Its just that I know the MPS is probably suspect. I should have said- once I get this problem diagnosed its on the MPS.
And- you guys were right on- it was the trigger- now have spark to all cylinders and can start the car- however it will not rev...... Onward through he fog! Pete |
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| emerygt350 |
Dec 23 2021, 06:07 AM
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#10
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Do you feel good about your vacuum lines? Are they all going where they need to be?
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