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1992 Mazda MX3 Klze engine

Tiny
JACOBYABALOS32
  • MEMBER
  • 1992 MAZDA MX3
  • 2.5L
  • V6
  • TURBO
  • FWD
  • MANUAL
  • 170,000 MILES
My Mazda Mx3 Klze turbo is misfiring between 3000 and 4000 rpms. It has a manual fuel gage and I really don't know if it's that. It stays no lower then 45 and no higher then 55. Could that be a problem?
Tuesday, August 19th, 2014 AT 3:32 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Fuel pressure should be 30-37 w/vacuum and 38-46 w/o vacuum hose connected. Look for a vacuum leak like a broken hose or one off then have pressure regulator checked. These figures are at idle so higher rpm may be higher.
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Wednesday, August 20th, 2014 AT 6:42 AM

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