PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

Won't stay running

Thread Tools
 
Search this Thread
 
Old 07-10-2020, 02:08 AM
  #1  
Staging Lane
Thread Starter
 
K!ssmySS's Avatar
 
Join Date: Mar 2019
Location: Granite City, IL
Posts: 56
Received 5 Likes on 3 Posts
Default Won't stay running

This is becoming a beadache car wont idle with iat sensor plugged in but will idle fine with it disconnected i have a new sensor and Its getting its proper voltage. Thanks
Old 07-10-2020, 07:47 AM
  #2  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,838 Likes on 1,146 Posts

Default

Moved thread here. Deleted duplicate thread.
Old 07-10-2020, 12:12 PM
  #3  
TECH Senior Member
iTrader: (39)
 
LilJayV10's Avatar
 
Join Date: Apr 2007
Location: Evansville,IN
Posts: 9,465
Received 905 Likes on 646 Posts

Default

Originally Posted by K!ssmySS
This is becoming a beadache car wont idle with iat sensor plugged in but will idle fine with it disconnected i have a new sensor and Its getting its proper voltage. Thanks
You could give just a little more information...............

I'd post my crystal ball meme but I don't have it on this computer...
Old 07-10-2020, 02:54 PM
  #4  
Staging Lane
Thread Starter
 
K!ssmySS's Avatar
 
Join Date: Mar 2019
Location: Granite City, IL
Posts: 56
Received 5 Likes on 3 Posts
Default

Originally Posted by LilJayV10
You could give just a little more information...............

I'd post my crystal ball meme but I don't have it on this computer...
lq9 h.c.i, 4k stall tuned on speed density, 0411 pcm the car will run but a little before stalling out with sensor plugged in and has a hard time starting when the motor is up to temp, if i unplug the sensor it fires right up and runs good
Old 07-10-2020, 03:04 PM
  #5  
TECH Senior Member
iTrader: (39)
 
LilJayV10's Avatar
 
Join Date: Apr 2007
Location: Evansville,IN
Posts: 9,465
Received 905 Likes on 646 Posts

Default

datalog and tune?
Old 07-10-2020, 04:35 PM
  #6  
TECH Senior Member
 
G Atsma's Avatar
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 21,225
Received 3,153 Likes on 2,460 Posts
Default

Originally Posted by K!ssmySS
...............the car will run but a little before stalling out with sensor plugged in and has a hard time starting when the motor is up to temp, if i unplug the sensor it fires right up and runs good
WHICH sensor?
Old 07-11-2020, 06:16 AM
  #7  
Staging Lane
Thread Starter
 
K!ssmySS's Avatar
 
Join Date: Mar 2019
Location: Granite City, IL
Posts: 56
Received 5 Likes on 3 Posts
Default

Originally Posted by G Atsma
WHICH sensor?
the iat
Old 07-11-2020, 09:50 AM
  #8  
TECH Senior Member
 
G Atsma's Avatar
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 21,225
Received 3,153 Likes on 2,460 Posts
Default

Originally Posted by K!ssmySS
the IAT sensor
Fixed it. I thought it was a typo in your first post. Acronyms should always be capitalized for better clarity.
You might have a bad IAT sensor.
Old 07-11-2020, 12:27 PM
  #9  
Moderator
iTrader: (4)
 
Darth_V8r's Avatar
 
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,838 Likes on 1,146 Posts

Default

I wonder if the tune is overly lean. With iat unplugged you get -39 degrees and it runs pig rich. So if it is running good without it you are very lean.

Also consider a smoke test for vacuum leaks



Quick Reply: Won't stay running



All times are GMT -5. The time now is 12:54 PM.