p0118 and hard start with warm engine - Chevy Impala SS Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 03-31-2012, 12:37 PM Thread Starter
Senior Member
 
96louD_paC's Avatar
 
Join Date: Nov 2010
Location: landover MD
Posts: 265
 
p0118 and hard start with warm engine

I have code p0118 and I already change the sensor out once. But the code came back when I cleared it. What could be wrong now?

The dash temp gauge doesn't work either.

Car starts really bad when engine is warmed up but ok on cold starts. I have already replaced it with a vette starter about a month ago. Is the code p0118 have anything do with that?

DC INC
"desert storm" 94 caprice 9c1 5.7
"louD_paC" 96 caprice 9c1 5.7
"BLACK STALLION" 96 caprice 4.3 DD
96louD_paC is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-31-2012, 02:43 PM
Senior Member
 
1slow96's Avatar
 
Join Date: Jun 2011
Location: Dayton , Ohio
Posts: 5,734
 
Garage
p0118 and hard start with warm engine

PO118 is ECT high voltage,this is the "sensor" located in the water pump. The temperature "sender" is on the passenger side cylinder head,and only drives the gauge. Do not confuse "sensor" with "sender". You will get the wrong part every time. Check connectors,and wiring for damage. FSM gets real in depth,but requires a scan tool.
1slow96 is offline  
post #3 of 7 (permalink) Old 03-31-2012, 07:03 PM Thread Starter
Senior Member
 
96louD_paC's Avatar
 
Join Date: Nov 2010
Location: landover MD
Posts: 265
 
Yea I have a scan tool and know the differences in the 2.
Do the wires to the sensor usually go bad ? As far as grounding out.

As stated I replaced the sensor already. So my nxt step is the wires.

Does any one know why the rough start?

Thanks

DC INC
"desert storm" 94 caprice 9c1 5.7
"louD_paC" 96 caprice 9c1 5.7
"BLACK STALLION" 96 caprice 4.3 DD
96louD_paC is offline  
post #4 of 7 (permalink) Old 04-01-2012, 07:11 PM
Senior Member
 
Gregg-O's Avatar
 
Join Date: Sep 2005
Location: Phoenix, AZ
Posts: 5,693
 
If the ECT sensor on the WP is shot, it is probably telling the PCM that it's 20 degree's causing the PCM to direct more fuel to the engine thinking that it needs it...kind of like an old school choke stuck closed. Check the connector for that sensor , the wires tend to crack an inch or so away from the connector.

Taxes are not levied for the benefit of the taxed.


\'96 IMP SS BBB ,Stock, airbox is swiss cheese, K&N filter, Ultra Flows.
Gregg-O is offline  
post #5 of 7 (permalink) Old 04-01-2012, 08:41 PM Thread Starter
Senior Member
 
96louD_paC's Avatar
 
Join Date: Nov 2010
Location: landover MD
Posts: 265
 
thanks alot ill look at it tomorrow

DC INC
"desert storm" 94 caprice 9c1 5.7
"louD_paC" 96 caprice 9c1 5.7
"BLACK STALLION" 96 caprice 4.3 DD
96louD_paC is offline  
post #6 of 7 (permalink) Old 12-10-2012, 05:19 PM
Senior Member
 
mikekend's Avatar
 
Join Date: Jul 2000
Location: Fairfield CT USA
Posts: 531
 
Garage
Po 118

Found this thread doing a SEARCH... (who does that anymore?...lol)

Had the PO 118 on the beater ex-taxi (9C6) and checked the wiring / connector to the sensor looking for broken wires, but it turned out to be corrosion in the connector.
Sprayed it with some CRC Electro-motive spray & scrubbed it with a small wire brush.
reconnected, cleared the code & so far so good! Thanks All!

Mike Kender
`95 DCM / `94 BBB / `96 9C6 /`95 DGGM Caprice 6-Speed /92 Roadmaster Estate Wagon - Atomic Orange Woody!
CT TRI-9 / ECIRS #111 / ISSCA
mikekend is offline  
post #7 of 7 (permalink) Old 02-20-2013, 04:35 PM
Member
 
96claSSc's Avatar
 
Join Date: Aug 2012
Location: Alexandria,VA
Posts: 64
 
Garage
I'm having this same exact problem did u fix it? Please let me know how too if you did 96loud_pac
96claSSc is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome