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lrodri64 lrodri64 is offline
#147 of 2096
 
Join Date: Jul 2002
Location: Puerto Rico
Posts: 1,701
Difficult to diagnose misfire

Hi,
1995 Carrera 2 993 about 50k miles
Drives very good (lots of power, good torque) but after 5k rpm starts to misfire with backfires on the exhaust.

vehicle belongs to a friend, he already have replaced sparks, coils, injectors, caps and rotors, fuel pump, fuel filter, fuel tank filter, confirmed fuel pressure during a road test, ignition wires, road test with another ECU, fuel pressure regulator.

Exhaust system is modified.

He claims condition commenced after vehicle spent some time on a body shop (wide body conversion)

Any suggestions ?

Thanks.
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#147 of 2096
Old 02-02-2022, 07:55 PM
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