New Cougar Forum banner
1 - 2 of 2 Posts

·
Registered
2002 Mercury Cougar XR
Joined
·
2 Posts
Discussion Starter · #1 · (Edited)
Hello , new member here I’ve been doing a lot of digging around and I found this to the best spot for me to ask and get some opinions. I recently bought a Cougar 02 XR 82k miles and the engine light is on and I’ve been having some issues with it, first thing I noticed is that it was hesitating around 40mph / 4000 rpm . I’ve looked and it’s possibly the IMRC but I’m not sure.

Another issue I noticed ( First and Third Picture ) was the intake pipe was covered with duct tape so I took it out and it looks like they replaced it themselves I looked up stock year of the car it doesn’t look like this, but I did replace it. ( Fifth Picture )
Motor vehicle Vehicle Hood Automotive tire Car
Hood Light Motor vehicle Automotive fuel system Automotive air manifold

Motor vehicle Hood Car Automotive design Vehicle

Hood Motor vehicle Automotive lighting Trunk Automotive design

Car Vehicle Hood Motor vehicle Automotive design

Motor vehicle Automotive tire Vehicle Automotive exterior Gas


Codes
P0300 (Multiple Cylinders misfire)
P0303 (Cylinder 3 Misfire)
P0172 (Bank 1 too rich)
P0175 (Bank 2 too rich)
P1152 & P1132 ( I don’t know but research says Heated Upstream Oxygen Sensor Switch ) (HO2S?)

I’ve replaced the EGR sensor and MAF sensor.

I’m going to get a tune up Monday and honestly I’m not sure on what to do first besides spark plugs / wires if anyone has any suggestions that would be amazing. I’m honestly not very good with cars anything helps!
 

·
Registered
2002 Mercury Cougar XR
Joined
·
2 Posts
Discussion Starter · #3 ·
Coil pack as well. All at once.

Misfires will cause rich conditions. Start there.

The Duratec naturally has a weird little “bump” in the power band right at 3500-4000 when the IMRC switches over, but if it doesn’t continue to pull all the way to 6750 then it might not be opening.
Do you have any preferred brands on plugs/ wires / coil pack?
 
1 - 2 of 2 Posts
Top