Engine puttering.... help plz

Spladow

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May 31, 2017
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2002 3.0
throwing code P1399
Engine just putt putt putt putt
Drives okay. It putters around. Both exhausts putt putt putt at the same time.
Lol sorry everyone. I don’t know how else to explain it.
Changed the plugs and coil packs and the o2 sensor in the cat from another code. But the car runs the same.
Help plz
 

WHEEELMAN

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Hey guys
He's got a thread over on V6P and were trying to get him diagnosed too. Since he replaced his plugs and coil packs. We have eliminated that possible cause.

Since he also threw a code for the Secondary o2 sensor, I told him his next step should be to check out his converter. It might be clogged up causing excessive heat in the cylinders??
 

Eclipse99fwb

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Have you checked the EGR valve and the port on the intake manifold? At work we had a 01 accord j30 throwing random misfires and it was due to a bad egr valve and the port on the intake manifold was clogged with carbon.
 
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