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What knock sensor should I use for a 7747 to 7427 PCM conversion? Looking it up I find several different types, some are seperated by transmission type? Why would this matter? Which knock sensor do I need?
Also, Mark told me he remembered reading somewhere about guys who use the old ESC module and old knock sensor (from a 747 setup), while bypassing the ESC on the memcal? Any one know anything about that?? Probably more hassle than just using a newer style knock sensor with the 7427 PCM?
I stumbled across my answer
dave: "I use the Standard Ignition KS6 for an automatic transmission when doing the '427 PCM conversion"
Couple done here, both were Camaro to 16197427 PCM swaps.
How did you do each of them?
bump
I remember touching on this in a thread of mine once. For the 7427 you are gonna want to look up a 94-95 model truck with a auto trans to get the right knock sensor. The 94-95 trucks with manual transmissions used a different (older style) ecm that uses the same knock sensor as the 7747. The 7747 KS has a white plastic connector, the 7427 uses a black one.
Thats all I remember.
I can't find the thread, but it's not hard to either run wires from ESC module - old 7747 ECM or not use it and run knock sensor wire to PCM because knock module/ESC is in memcal.
Ok I'm glad I asked, and double, triple checked which knock sensor to use, the one I ordered was for a truck like you specified, 95 c1500 A/T so should be good to go. It actually came in the mail today.
Mark, Since I've already got a newer style KS I'm going to try to just use the ESC in the MEMCAL.. WHERE does the knock sensor wire go to on the PCM, what pin?