P0402

2 posts 2 contributors 1,207 views

Member since Jul 2017
1 post
Paducah, KY, USA

Jul 2, 2017 at 10:04 AM

Background: 2002 Crown Vic, 4.6L. 65K miles. 84 year old Mother-in-law's car. City stop & go driving; church, grocery, bingo, cards w/other widows. Longest trip that it has been driven is 20 miles.

402 code. replaced EGR and EGR solenoid (two hose, two wire) mounted near EGR valve.

Other possible steps: clean MAF sensor, replace front O2 sensor.

Comments...

edited Jul 3, 2017 at 12:26 PM

Bear79

Member since Jul 2016
12 posts
Stephenville, TX, USA

Jul 7, 2017 at 11:51 AM

Just a thought. I would disconnect the negative battery cable. This will reset to factory settings. Sounds like the CV was dogged around.

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