Recent content by Bruce Wingate
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1984 K10 LS Swap - Lots of Little Problems
Compression is fine in cylinder #2 at 190 psi; I let it sit for maybe 5 minutes and the compression did not change. Compression in cylinder #4 was also 190 psi. I check spark with a spark plug against the block and saw a regular spark. I don't have anything to compare the spark to, so I don't...- Bruce Wingate
- Post #72
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Hooked up a vacuum gauge and on seven cylinders it ran at a solid 21 PSI with no wavering. When I blip the throttle it drops down and then reasonably quickly gets back up to 21 PSI. When I plug in the number two injector pressure goes down to maybe 16 psi 14 psi. I tried unplugging the coil and...- Bruce Wingate
- Post #71
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
This is a 6.0 LQ4 out of a 2005 Hummer. I don't think they had AFM- Bruce Wingate
- Post #70
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Thanks @Ricko1966 Reader's Digest Version: 1984 K10 with LS swap. Once I got it back, it ran poorly. I narrowed that down to a dead/cold cylinder #2. Checking the plugs early on (before swapping with another cylinder), the #2 plug looked brand new. Compression looked OK (about 180 psi in...- Bruce Wingate
- Post #67
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Been a while, after Holley tested and OK'd the ECU, they replaced the harness. While I was putting everything back together, I managed to close my finger in the truck door. Nothing broken, but a cut that took a could of stitches to close. So, everything is back together with no changes. I...- Bruce Wingate
- Post #64
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Finally got a return authorization from Holley for the harness and the computer. Of course they have to go to separate locations, but I should have an answer in a couple of weeks. The tech said that if the unit has low hours that it may be warrantteed but could not make any promises. Next up...- Bruce Wingate
- Post #63
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
I've been quiet for a while - vacationed someplace warm. My last tech support call with Holley said to power the fuel pump via a relay and run a ground from the pump directly to the battery. I don't see the point, but I spent today taking care of the relay. My wiring is out of control with...- Bruce Wingate
- Post #61
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Different Question: Any idea what these wires are for?- Bruce Wingate
- Post #58
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
I've been silent on this for a while - I have to work on the truck outside and it snowed and then was cold and damp for a few days. Cold and damp is the combination I just can't take. I followed Holley tech support's suggestions and did not elicit any change. I did find that a power wire was...- Bruce Wingate
- Post #56
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
I did a continuity check but not an ohm test. Next couple of steps involve checking ohms along the circuit back to the ECU. I just spoke with Holley, and they suggested downgrading the firmware to v2 because some older versions of the Terminator do not like v3. Then it is shipping the unit...- Bruce Wingate
- Post #50
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
I'm a little stumped at this point. I swapped the injectors between #2 and #4 and the problem stayed with cylinder #2. Then I swapped the plugs between #4 and #2 and again the problem stayed with #2. I am getting spark and compression at cylinder #2 which were fine (I tried using the timing...- Bruce Wingate
- Post #46
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
I thought I replied to this a few days ago - guess I didn't hit send. I tried this and it didn't work. Its either my cheap timing light or I screwed it up. Today I hooked up a spark plug checker on cylinders 2, 4 and 1. All flashed appropriately although #1 seemed a little brighter. So now...- Bruce Wingate
- Post #45
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Spent today putting the fuel rail back on and everything buttoned up. I put a noid light on the even cylinders and got a positive result for all four cylinders (flashing lights = good). I tried checking to see if the injectors were clicking with a screwdriver, but couldn't quite tell - I heard...- Bruce Wingate
- Post #43
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
Spent this morning cleaning/testing the injectors. All 8 injectors fire nicely with a good clean pattern. Also spent some time at Youtube University trying to get some hints. I came up with two Scanner Danner videos: Like @Bextreme04 said, SD said to check voltages of the connections in...- Bruce Wingate
- Post #41
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
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1984 K10 LS Swap - Lots of Little Problems
To my understanding, the Terminator fires sequentially and is not a wasted spark system. I swapped ignition coils with no change. Tomorrow or Monday I will use some of the diagnostic funtions of the Terminator to trigger the injectors individually and see what happens- Bruce Wingate
- Post #38
- Forum: Engine Swaps (Gas) LS, Vortec, LT1 , etc.
