Nissan Repair: 97 maxima, cylinder misfire, radio shack

Question
Hi there. I'd appreciate if anyone could help me with this one.

My 97 maxima has been having some problem either bucking, hesitating
or stalling on take off. However, it's been getting worst lately.
When cold, if I put it in reverse it will stall. Once in a while the
check engine light will come on and give me 2 codes: one for multi-
cylinder misfire and another for the knock sensor. There is a service bulletin that
matches those descriptions. The fix is either one or more coils or a bad
wire in the wiring harness causing a misfire. Well, I went under the
hood and I wiggled the wiring harness (from ECU to engine components) while the engine was running.
Every time the engine would stall. So, I figured there was the problem. I started stripping the wring harness and wiggled the wires
one by one while the engine was running. There was this one gray wire
which seemed to do it. I stripped the wire and there were two small
wires inside (one black & one white) wrapped around a shield of stripped thin wires. I didn't seen anything wrong with the wires (maybe that I need to go deeper into the wiring harness). Anyway, now the car won't start even when wiggling the wires. Only I smell fuel coming from the exhaust when I try to start it.

Did I do something wrong by stripping the insulation of stripped wires around the two wires in question?

C  

Answer
Carsch,

The wires are shielded and need to be put back in that condition.  You can buy some shielding from Radio Shack and put in between the wires and tape them back up.  If it were my guess I would say the connection at the ECU needs to be removed and the pins for that wire you are talking about, the gray one, needs to be looked at in the connector.  Possibly take the wire connector out of the harness and re-crimp it and put it back and you should have the problem solved.