Engine problem
1996 Acura RL 6 cyl Front Wheel Drive Automatic 125000 miles
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Hello there,

Check engine light led on my 96 Acura 3.5RL and diagnose code P401. I replaced the EGR valve and clean orifice under the EGR valve and the connecting pipe between the EGR and the in-take; however it didn't fix the problem.

Please help.

Thanks,
LN.

gotta clean the intake manifold too