Running Poorly
giant45man
05-17-2004, 04:24 PM
I have a 91' Infiniti Q45. Lately my car has been running poorly. Here are the symptoms:
1) Rough idle
2) Black Smoke coming from the exhaust
3) I noticed a hard to describe odor coming from underneath the car, smells like exhaust (catalytic converter?)
4) Poor fuel mileage
5) Lacks power.
I ran diagnostics using the onboard computer and it flashed a 34 code which the book says points to the "Detonation Circuit". Based on what the technical manual says, there are a few most likely culprits:
A) Fuel injectors
B) Spark Plugs
C) Fuel Pump
D) EGR Valve
Does anyone have any ideas?
1) Rough idle
2) Black Smoke coming from the exhaust
3) I noticed a hard to describe odor coming from underneath the car, smells like exhaust (catalytic converter?)
4) Poor fuel mileage
5) Lacks power.
I ran diagnostics using the onboard computer and it flashed a 34 code which the book says points to the "Detonation Circuit". Based on what the technical manual says, there are a few most likely culprits:
A) Fuel injectors
B) Spark Plugs
C) Fuel Pump
D) EGR Valve
Does anyone have any ideas?
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