2CarPros - Car Questions & Answers

1991 Mercury Capri Repair Question


Topics covered: Body, Idle air control valve, Intake manifold.
Mileage: 150,000 miles.

Asked on February 26, 2012

What does the flash code 3-4 mean for 1991 mercury capri

What does the flash code 3-4 mean for 1991 mercury capri

Avatar Asked by jonathon

Answer

Replied on February 26, 2012

That translates to "Idle Speed Control". More than likely the Idle Air Control Valve, IACV, has failed. It is generally located on the intake manifold near the throttle body.

Tiny Answered by DrCranknWrench (expert)
3,292 answers provided