i have 96 sunfire want swap v6 in how do i go about piggybacking pcms.I know 2.2 pcm will run speed tach fuel gauge. But i read about having splicing sensors or add sensors or some thing about adding sensor for ect gauge help im confused now .thanks
Just use 00+ wiring harness for the V6 and splice into the 2.2 harness. No need to piggyback pcms. I have a 96 Cavalier I swapped a 3400 in to it and wired everything to the 34 pcm. Use all the same sensors that come with the V6.
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so you mean use 00 v6 harness splice into c100 and fusebox of 2.2 and use the sensor that come with v6 correct. But how would i go about making the pcm work on 3t40 trans
phil jolly wrote:Just use 00+ wiring harness for the V6 and splice into the 2.2 harness. No need to piggyback pcms. I have a 96 Cavalier I swapped a 3400 in to it and wired everything to the 34 pcm. Use all the same sensors that come with the V6.
you have been asked in 2 other threads now what ecm you are using you make this work as it has not been done on a pre 2000 j body before
if u have to use a 2000+ interiorharness it may be easier to just piggy back. to swap to the 2000+ cluster is diffrent sensor in the tank 4 fuel level and alotta work.
Im using an Impala pcm on my 96. Engine harness is from a 2001 Impala spliced into my 96 2.2 harness. Just reading the pin outs. I got everything to work on mine just wired into the 3x00. Just to a little reading and thinking.
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You need to swap that 3 speed auto.
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