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93 940 w/ Regina keeps tripping Check Engine light for knock sensor code 143 900 1994

posted by  bcg on  Fri Jan 25 11:28 CST 2013
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last visit: Sun Jul 27 08:12 CST 2014
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john,
many thanks for your reply. i agree with j.e. (spook). as often as this issue has risen, this would be a go for the FAQ.

questions:

a. how did you fit the new wiring to the 10 or 11-pin bendix connector plug with all the other wiring wrapped up?

b. did you pick up a 10-pin bendix connector from the junk yard or just took off the tape and swapped out the original knock sensor pins out of the plug and put the new, shielded wire connections in its place?

c. also, did you have hesitation problems after a few minutes, as many of us have had with the rex/regina system?

d. if so, did this seem to fix that problem too?


so, to my understanding, you did the following.
1. used 2 wires shielded with connectors
2. ran them from the knock sensor,
3. spliced to a knock sensor connector (i have a spare one too).
4. ran in the engine bay through the firewall away from other possible sources of interference
5. to the icu bendix, inside the car, and grounded the shielding on both ends.
6. using volvo connectors same as the other connectors to the icu.
7. you kept the original knock sensor connector intact, uncut.


i think that would be best which would one can avoid unraveling that wiring loom.

i would have tried to connect it to the gray connector, but i didn't think that the interference may be coming from the interior.

i'll get this done for sure.

thanks,
byron






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