General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here...

HELP!!! 94 cougar problems

Old 08-13-2008, 08:09 AM
Junior Member
Thread Starter
Join Date: Aug 2008
Location: United States
Posts: 2

sorry to bother even though i do not know you i have read many posts and talked to others and they said mmaybe ask u i am lost and any and all info will be greatly appreciated or a point in the right direction
thanks a ton in advance
hello i have a 94 cougar xr7 3.8v6 it has barely 100,000 miles it drove fine next day get in and it idles all irratically and what not and the check engine light comes on so i had the car scanned it read code 173 right side o2 sensor reads rich and it sounded like it was missing and really sluggish low rpms and i smelled raw fuel so i replaced all plugs wire cap rotor fuel filter ect the middle plug on right side was all fouled out and covered in oil and smelled like oil and raw fuel so i replaced them all it starts and a lot of the miss went away but i still after 2 dyas of driving since new smell raw fuel just had it rescanned after leaving battery out for days and now it has both o2 sensors indicate rich those are the only 2 codes it pulls and it is going through gas llike its leaking it but its no leaking a drop what could the issue be? its gotta be either its just getting too much fuel or not enough spark to ignite all the fule where should i start what should i do i am a terrible typer i apologize but its not timming cause in upper rpms the car is fine r the o2 sensors clogged or bad would that cause it the car fires right up and still drives just bogs down low and wastes tons of gas ect please give me any help or point me in the right direction i am desperaste and have work and kids to take to school ect any help would be great thanks a ton !or maybe a bad coil?clogged catylitic converter?ignition module? it aso smells like raw fuel out of the tail pipe so i went through i found i had a vacumn leak and replaced the line i replaced all vacumn lines i then drove it thinking i fixed it then i smelled fuel again and pulled middle plug on passenger side it was fouled out and smelled and wet with gas it sucks down gas can go through full tank esasy in a day light driving itd s not pysically leaking at high rpm it drives fine the check engoine light comes on stays on for a min or two then goes odff for like 5 on and off again its got a 173 and a 176 right and left o2 sensors indicate rich condition it has a tune up and i am completely lost why just one plug is fouling out and then it ats sluggish and hesitateds off the line or from idle it starts fine though right up in fact at idle after coming off highway it smokes really bad a light blue smoke that smells of raw fuel and makes my eyes water thats about the best i can describe it i was gonna run a comnpression test or check timing bu i doubt either is the actual cause but i jhave asked others and u seem to be the master thanks a ton i am completely lost i have tried what i thought could it be clogged cats? any and all help would be great its sooo expensive and annoying to drive and i have a family and money is tight thanks again
Old 08-16-2008, 11:53 PM
Senior Member
Join Date: May 2008
Posts: 455

the sensor is going out because of excessive raw fuel like you said. tis will also kill the converter. but a bad converter will not cause this problem form raw fule in it.this is a secondary problem. we need to find the first problem causing the unburned fuel.

if you do not have proper tools to test these things do this..

go to auto zone and take off the coil or coils in the parking lot or at home if you have another car to get there. have them checked for free. they will test high and low resistence. have them check the spark plug wires. have them check the module. if it is not burning it and these check out you are going to have to check soemother things that i will tell you about later. check these first and get back to me. raw fuel is going to wash all the oil on the piston and cause premature failure if you do not get this spark taken car of soon. then that will be bigger problems that a spark problem
Old 08-16-2008, 11:56 PM
Senior Member
Join Date: May 2008
Posts: 455

so this is what to do.. get coils check for free

get wires checked for free

get module checked for free.

most places that sell parts do this for free. call first before going there. a good time is a week day early if you can. you can b s withnthem and they might even check a few things on the car so you don''t have to take them off.
Related Topics
Thread Starter
Last Post
General Tech Help
11-22-2010 11:56 PM
07-28-2009 10:31 PM
03-10-2009 06:14 PM
09-08-2008 09:03 PM
Grand Marquis
09-25-2006 11:06 PM

Thread Tools
Search this Thread
Quick Reply: HELP!!! 94 cougar problems

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.