Knock sensor connector to which harness ?
#1
Senior Member
Thread Starter
Knock sensor connector to which harness ?
Can anyone confirm that the knock sensor connector goes to ECU-emissions harness top front of block (to connector W highlighted in yellow in pic) ?
... or does it go to the fixed engine harness connector on driver's side of block ?
I suspect the knock sensor connector goes to ECU-emissions harness W connector
and the power steering pump connector goes to the engine harness, but my knock sensor connector appears to be
5 inches too short to reach ECU-emissions harness connector W on top of the engine ???
Both harness connectors are zip tied to the harness body, but removing zip tie wouldn't make the connector any closer.
I verified ECU-emissions harness routing, so I can't figure why the knock sensor connector won't reach ???
... unless my assumptions about which connector goes to which harness are wrong.
I need clarification on this before I can install alternator + belts and get this engine installed.
Thanks for any assistance offered.
... or does it go to the fixed engine harness connector on driver's side of block ?
I suspect the knock sensor connector goes to ECU-emissions harness W connector
and the power steering pump connector goes to the engine harness, but my knock sensor connector appears to be
5 inches too short to reach ECU-emissions harness connector W on top of the engine ???
Both harness connectors are zip tied to the harness body, but removing zip tie wouldn't make the connector any closer.
I verified ECU-emissions harness routing, so I can't figure why the knock sensor connector won't reach ???
... unless my assumptions about which connector goes to which harness are wrong.
I need clarification on this before I can install alternator + belts and get this engine installed.
Thanks for any assistance offered.
#4
Senior Member
Thread Starter
Thanks guys,
My emissions ECU harness must be routed slighly to the passenger side at the very front.
I can't see any other reason the wire wouldn't reach, even with the wire routed along the shortest path.
I was able to scrounge a slightly longer length of shielded wire from a scrap harness
to make it reach the harness connector.
I'm guessing shielded wire was used because of the magnetic noise created by the alternator just in front of it.
The outer shield goes to ground, and the inner signal wire provides the voltage difference when the engine block is tapped.
The shielding ends about 1/2" before the end connector under a piece of orange heatshrink on mine.
My emissions ECU harness must be routed slighly to the passenger side at the very front.
I can't see any other reason the wire wouldn't reach, even with the wire routed along the shortest path.
I was able to scrounge a slightly longer length of shielded wire from a scrap harness
to make it reach the harness connector.
I'm guessing shielded wire was used because of the magnetic noise created by the alternator just in front of it.
The outer shield goes to ground, and the inner signal wire provides the voltage difference when the engine block is tapped.
The shielding ends about 1/2" before the end connector under a piece of orange heatshrink on mine.
Last edited by Blk 93; 10-28-15 at 09:08 PM.
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