300ZX help! Engine runs rough

Tiny
CHRIS_DAVIS480
  • 1990 NISSAN 300ZX
  • 6 CYL
  • 2WD
  • MANUAL
  • 197,000 MILES

Car runs rough through 1500-3000 rpm, bucks after the 2nd and 3rd shift.
misfires on one cylinder (5),
sometimes has some backfire,
pulled codes, only has a 13.
which is the coolant sensor, I bought a new one, was a duralast, and no change. Im so confused and frustrated, please help me!
its a 1990 nissan 300zx
thanks so much

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Sunday, March 27th, 2011 AT 2:10 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER

Check the no.5 spark plug, compression and injector.

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Sunday, March 27th, 2011 AT 6:04 AM

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