Reversed terminals...need help

ONLY for ADVANCED technical discussion about the 240sx!
rockmafb06
Posts: 1
Joined: Mon Apr 13, 2009 12:12 pm
Car: 240sx, 350z Nismo #24

Post

First off I have a 91 hatchback with a redtop in it...So I was replacing my battery and like a jack a** I don't pay attention and put the terminals on reversed. I replaced the blown 75 amp fuse and the car will now turn over but won't fire. I can smell gas when it is turning over and it acts like it doesn't get spark. What else could have gotten cooked, I am thinking either the ECU or coil pack since there isn't spark. Would the coil pack even be a possibility or should I just worry about the ECU.


User avatar
the converted
Posts: 2767
Joined: Wed Feb 21, 2007 7:14 am
Car: '99 BMW M3 6.0
'88 Toyota Celica All-Trac (somewhere in Cali)
'20 Toyota Tacoma
Location: Boston

Post

Find a friend with a similar car and start swapping parts back and forth until it works. Reversed polarity can cook a lot of things, although if you are getting fuel, your ecu probably made it through ok. I guess pull the cover off the ecu and see if anything looks burnt is a good start.


Return to “240SX Technical Forum”