L300 shut down

  #1  
Old 05-04-2015, 01:23 PM
Banned
Thread Starter
Join Date: May 2015
Posts: 7
Default L300 shut down

Hi, i own a 2005 L300 that shuts down when the temp indicator is on the middle, theres no engine code, ive already replace the fuel pump.

took off crankshaft position sensor and multimeter reads 150k ohms, what other test can i do?
 
  #2  
Old 05-05-2015, 01:59 AM
derf's Avatar
Super Moderator
Join Date: Jul 2005
Location: My Saturn ;)
Posts: 7,708
Default

is it 100% consistent, meaning if you leave it idling in the driveway, it will idle up to that sane temp range, then cut out?

if the answer to the above is not yes, please provide some more details concerning when this happens (1st drive of the day(when engine starts out cold), after restart following stop for quick errand (when engine is warm)) while you're driving at highway speeds, stop n go, etc.

We need to nail down as much as we can in order to help you
 
  #3  
Old 05-06-2015, 10:24 AM
Banned
Thread Starter
Join Date: May 2015
Posts: 7
Default

took off cps and tested in boiling water, multimeter goes from 135k ohms to 0.0 ohms
 
  #4  
Old 05-06-2015, 10:24 PM
derf's Avatar
Super Moderator
Join Date: Jul 2005
Location: My Saturn ;)
Posts: 7,708
Default

Thanks for providing absolutely none of the information requested. Really don't understand why people behave this way, but here's the one and only response you'll receive from me
---------
So basically it becomes a dead short/piece of copper wire at higher temps.

I wonder how that affects the signal it generates.
_______
 
  #5  
Old 05-07-2015, 10:00 AM
Banned
Thread Starter
Join Date: May 2015
Posts: 7
Default

sorry derf but the car is at my parents house, 1 hour away and i just have the cps in my hands, probably ill visit them this weekend and test the way you said
 
  #6  
Old 05-09-2015, 07:43 AM
Rubehayseed's Avatar
Senior Member
Join Date: Jul 2011
Location: Lake Wales, FL
Posts: 3,754
Default

Why in the world would you put the TPS into boiling water? I've never heard of that. Thermostat? Yes. TPS? No. Please explain the logic behind this.
 
  #7  
Old 05-09-2015, 08:08 AM
derf's Avatar
Super Moderator
Join Date: Jul 2005
Location: My Saturn ;)
Posts: 7,708
Default

cps crank position sensor.
 
  #8  
Old 05-11-2015, 10:14 AM
derf's Avatar
Super Moderator
Join Date: Jul 2005
Location: My Saturn ;)
Posts: 7,708
Default

ya know, both those readings seem whack to me way too high when cold and way too low when hot. I would expect 700-1200 Ohm range. certainly shouldn't short at high temp. sure your meter leads were not touching? Usually when they fail they go open circuit when hot which is what your situation sounds like, but then as they cool down they re-establish continuity

No CPS signal to PCM-->no spark + no fuel inj signal--> engine does not run.
 

Last edited by derf; 05-11-2015 at 10:23 AM.
  #9  
Old 05-11-2015, 02:54 PM
Banned
Thread Starter
Join Date: May 2015
Posts: 7
Default

Replaced CPS and the car runs great, ill take it off and check resistance just to have a comparative betweeen the old vs the new cps
 
  #10  
Old 05-11-2015, 02:58 PM
Banned
Thread Starter
Join Date: May 2015
Posts: 7
Default

Just like derf says: No CPS signal to PCM-->no spark + no fuel inj signal--> engine does not run.

funny thing is that i ignored all sensors because the check engine light didnt light up, but the cps just shutted down spark and fuel when it got warmed.
 

Thread Tools
Search this Thread
Quick Reply: L300 shut down


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 Amazon.com and affiliated sites.