Help! Ive failed Delaware emissions twice!

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Jul 1, 2010 | 12:21 AM

R Cannon

Thread Starter

Seasoned Member

Joined: Nov 2009

Posts: 495

Likes: 0

From: PA

Year: 1996

Model: Cherokee

Engine: 4.0 HO

Help! Ive failed Delaware emissions twice!

Ive ran methonol the2nd time and the levels went down, but still failed. The Cat Convertor has tested good. Afew people said its running rich. I just changed the plug, wires, cap and rotor today. Im at a loss if I cant get it to pass. Its a 95. Any suggestions will be greatly appreciated. Please help me.

It runs smooth.

Last edited by R Cannon; Jul 1, 2010 at 12:23 AM. Reason: add

Jul 1, 2010 | 01:16 AM

KE7JFF

Junior Member

Joined: Jun 2010

Posts: 79

Likes: 1

From: Hillsboro, Oregon

Year: 1994

Model: Cherokee

Engine: 4.0L AMC 242

How is your O2 Sensor?

Jul 1, 2010 | 03:49 AM

5-90

CF Veteran

Joined: May 2008

Posts: 3,018

Likes: 23

Year: 1988

Model: Cherokee

Engine: AMC242

Scan your report and post it. Better, scan both reports and post them - making sure to note everything you did in between.

"Pass" numbers are just as instructive as "Fail" numbers in emissions evaluations, and you've not given us anywhere near enough information to even begin troubleshooting...