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2003 Nissan Altima

Tiny
DMAC80
  • MEMBER
  • 2003 NISSAN ALTIMA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 14,600 MILES
Recently replaced the exhaust header/catalytic converter due to a leaky bung hole near the upper O2 sensor. Now when I start the car it idles fine, but when you give it some gas it sputters and stalls at around 2k rpm. Checked the ignition coil for good spark and replaced the plugs. Please point me in the right direction. Thank you
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Monday, July 28th, 2008 AT 5:44 PM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Is your check engine light on?
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Tuesday, July 29th, 2008 AT 6:17 AM
Tiny
DMAC80
  • MEMBER
  • 2 POSTS
No isn't and when you try to rev the engine up and hold it at 2 grand it shakes and sputters and if you hold it long enough it will die
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Tuesday, July 29th, 2008 AT 4:03 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
If it was running fine before the header install, re-inspect the installation looking for any wires or vacuum lines broke, cracked. Also inspect fuel lines and wiring harness near the exhaust system looking for signs of overheated/burnt wires.
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Wednesday, July 30th, 2008 AT 4:55 AM

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