Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

A $14.99 CPS

Thread Tools
 
Search this Thread
 
Old 06-10-2016, 12:28 PM
  #1  
CF Veteran
Thread Starter
 
Cummins93's Avatar
 
Join Date: Mar 2015
Location: Northern CT
Posts: 1,197
Received 149 Likes on 126 Posts
Year: 1995
Model: Cherokee
Engine: Turbo 4.0
Default A $14.99 CPS

Many people have had an issue with a cheap aftermarket CPS. They don't fix a precieved CPS issue or they fail quickly, what ever the reason I felt like I needed to experience it myself. Cheapest one I could find was out of Hong Kong for 14.99 shipped to my doorstep. It is physically identical to the OEM unit. The major difference was the aftermarket one is not magnetized or at least not to a precievable amount. Immediatley I knew I was wasting my time under my jeep. Well go big or go home. It will at least make a good guinea pig for finding the best way to move a sensor over for more timing adv.






It was actually very easy to move once the plastic is warm. Fast forward to me throwing it in...turn the key fires right up and I am shocked. Fast forward through a summer, winter, and back to summer with 16000 on the sensor and I am still just as shocked that it runs. In the summer I do run 89 and tow with it. I have seen no improvement in Mpg, below freezing starting, or wot power. It does seem to cruise at 65mph much better than it ever had. No other changes where made besides the sensor during the 16k. Now it is just a waiting game till it goes, for now I am happy with my decision. Do I keep my stock CPS in my glove box? You bet I do.
Old 06-10-2016, 01:19 PM
  #2  
Junior Member
 
Lowrange2's Avatar
 
Join Date: May 2008
Location: +34° 25' 35.67", -81° 21' 12.04"
Posts: 15,016
Received 9 Likes on 7 Posts
Year: 1993
Engine: 4.0
Default

I never understand peoples skepticism of cheap parts. I buy them all the time. 90% of the time they're the same exact thing you're buying from the parts store.
Old 06-10-2016, 02:03 PM
  #3  
CF Veteran
 
robertj's Avatar
 
Join Date: Nov 2008
Location: Herndon, VA
Posts: 1,077
Received 21 Likes on 18 Posts
Year: 1996
Model: Cherokee
Engine: 4.0
Default

A lot of cheap sensors can cause more trouble than they are worth, and I'd say that's why people avoid them. The first non-OEM temperature sensor I tried was 40 degrees off, so that got annoying really quickly. A brand new NAPA oil pressure sensor leaked, so it had to go. I ended up with OEM sensors and never had another problem. As OEM gets harder to find though, we will all end up using whatever the after market throws at us.
Old 06-10-2016, 02:11 PM
  #4  
Junior Member
 
Lowrange2's Avatar
 
Join Date: May 2008
Location: +34° 25' 35.67", -81° 21' 12.04"
Posts: 15,016
Received 9 Likes on 7 Posts
Year: 1993
Engine: 4.0
Default

Right, I get that OEM sensors are better. No denying that.

I'm comparing a $14.99 CPS to any parts store $89.99 sensor. They're the same thing. Different box.
Old 06-11-2016, 07:40 AM
  #5  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,866
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

http://cruiser54.com/?p=50
Old 06-13-2016, 10:49 AM
  #6  
CF Veteran
 
investinwaffles's Avatar
 
Join Date: Oct 2013
Location: Tarpon Springs, FL / Denver, CO
Posts: 2,097
Likes: 0
Received 8 Likes on 7 Posts
Year: '98
Engine: 4.0 I6
Default

Originally Posted by Lowrange2
Right, I get that OEM sensors are better. No denying that.

I'm comparing a $14.99 CPS to any parts store $89.99 sensor. They're the same thing. Different box.
I don't doubt that. Most of the parts store crap is just mass-produced junk in China (BWD for example). The only real motivation for getting one from the parts store is the ease of warranty, and getting parts in a pinch.

Certain hard-to-reach and engine critical sensors I prefer the peace of mind and just go with OEM. A throttle position sensor, for example, I will get the cheapest one. My BWD TPS has been fine for ~30,000 miles after the stock one failed on me.
Old 06-15-2016, 08:56 PM
  #7  
Senior Member
 
bryweb's Avatar
 
Join Date: Nov 2011
Location: Tallahassee, FL
Posts: 596
Likes: 0
Received 7 Likes on 7 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Default

I use cheap parts a lot with success, but I have been bitten numerous times with generic Crank Sensors,' some I have gotten to work by polishing/cleaning the rust off of the ring gear where it picks up signal. Some have not worked at all in one jeep and worked fine in another. I have 5 of them in a bucket in the garage, its amazing to see the difference in magnet strength between them all.

This why I always say "Buy a Mopar OEM" or all others are a gamble !!!! I never say it won't work, but buying a generic and still having a problem does not mean the new part is not the cause (-:
Old 06-20-2016, 12:18 AM
  #8  
CF Veteran
 
JPXJMOAB's Avatar
 
Join Date: Jan 2015
Location: Minnesota
Posts: 2,152
Likes: 0
Received 7 Likes on 7 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L
Default

I agree with LowRange on the cheap sensors.. 95% of the time they're the same. My jeeps are full of AZ sensors.. Only sensor I will never buy aftermarket is the oil pressure sending unit.. That's always a MOPAR in my jeeps.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nabtastic
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
34
09-04-2016 07:51 PM
David Pinkston
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
04-02-2016 09:52 PM
Bajarider
Cherokee Chat
4
03-26-2016 10:22 AM
savagess2546
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
03-25-2016 09:32 AM
paul03
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
03-19-2016 10:55 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: A $14.99 CPS



All times are GMT -5. The time now is 07:32 AM.