Gauge Problem - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Chevy Cobalt Owners Lounge General Chevy Cobalt discussion

Closed Thread
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 01-25-2009, 12:14 AM Thread Starter
Sneezing Daily
Staff Alumni
YourCobalt.com Premium Member


 
SHINKS07SS's Avatar
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 1,155
Garage
Question Gauge Problem

Okay, so I have the Cobalt Series aftermarket gauges, one is oil pressure and the other is voltage. I have hooked both of them up, and my volts is working correctly, but when I started my car i didn't have the sensor for the oil pressure gauge plugged into the sending unit because i was checking for leaks. The pressure gauge shot up to 100 psi and now rests at this pressure, even though i have it hooked up and such to the unit. Any suggestions on what to do? Does anyone have this style gauge?

Thanks in advance.

M62 Powered for Now


S252 Next (Car is gonna be fast and Sneezing, lots!)
SHINKS07SS is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 01-25-2009, 01:23 AM
Cobalt Master
 
Join Date: Nov 2006
Posts: 1,538
you try disconnecting the gauge, then reconnecting it to reset it???
cobaltkrazy is offline  
post #3 of 11 (permalink) Old 01-25-2009, 10:15 AM Thread Starter
Sneezing Daily
Staff Alumni
YourCobalt.com Premium Member


 
SHINKS07SS's Avatar
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 1,155
Garage
yeah, i had it like disconnected for almost a whole day.

M62 Powered for Now


S252 Next (Car is gonna be fast and Sneezing, lots!)
SHINKS07SS is offline  
post #4 of 11 (permalink) Old 01-25-2009, 11:40 AM
Cobalt Master
 
Join Date: Nov 2006
Posts: 1,538
you installed the sensor for it? try disconnecting the power to the sensor too
cobaltkrazy is offline  
post #5 of 11 (permalink) Old 01-25-2009, 12:01 PM Thread Starter
Sneezing Daily
Staff Alumni
YourCobalt.com Premium Member


 
SHINKS07SS's Avatar
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 1,155
Garage
Power to the sensor, all there was is a plug that went onto the sending unit. This how it goes: adapter into block, sending unit, then the harness for the gauge (sends the psi it is getting to the gauge) none of the three wires was a power one? Im not quite sure what you are asking here

M62 Powered for Now


S252 Next (Car is gonna be fast and Sneezing, lots!)
SHINKS07SS is offline  
post #6 of 11 (permalink) Old 01-25-2009, 01:32 PM
Cobalt Master
 
Join Date: Nov 2006
Posts: 1,538
Quote:
Originally Posted by Shinklemazda View Post
Power to the sensor, all there was is a plug that went onto the sending unit. This how it goes: adapter into block, sending unit, then the harness for the gauge (sends the psi it is getting to the gauge) none of the three wires was a power one? Im not quite sure what you are asking here
i meant to disconnect the sensor altogether, to reset it. something must have received a mixed signal during installation
cobaltkrazy is offline  
post #7 of 11 (permalink) Old 01-25-2009, 02:01 PM
Cobalt Specialist
 
Join Date: Nov 2007
Location: Sunshine State
Posts: 1,250
If you have an electric oil pressure gauge it has to have power to it...red wire for 12 volts, black wire to ground, and green or brown wire to sending unit. I found that grounding the black wire is critical -- do you have it grounded to the block or another location? When I installed mine it did not read correctly (read real high too) until I grounded it on the engine.

Ex-Cobalt Owner
Red07SSNA is offline  
post #8 of 11 (permalink) Old 01-25-2009, 02:45 PM Thread Starter
Sneezing Daily
Staff Alumni
YourCobalt.com Premium Member


 
SHINKS07SS's Avatar
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 1,155
Garage
i have it grounded inside the car, where on the block do you have it grounded

My red wire is going to the IGN fuse in the fusebox,

and there are three wires coupled together that i have going to the sending unit (purple gray and something else)

M62 Powered for Now


S252 Next (Car is gonna be fast and Sneezing, lots!)
SHINKS07SS is offline  
post #9 of 11 (permalink) Old 01-25-2009, 03:26 PM
Cobalt Specialist
 
Join Date: Nov 2007
Location: Sunshine State
Posts: 1,250
I have my ground on the cylinder head. looking at the cylinder head from the front, look on the driver's side -- mine had a threaded bolt hole that wasn't used. I put my ground there.

The other wires (like gray) should be for the lighting. Check your instructions to make sure you have it wired right.

Ex-Cobalt Owner
Red07SSNA is offline  
post #10 of 11 (permalink) Old 01-25-2009, 03:30 PM Thread Starter
Sneezing Daily
Staff Alumni
YourCobalt.com Premium Member


 
SHINKS07SS's Avatar
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 1,155
Garage
There is a white wire for the backlight. I have the full sweep if it makes any difference

M62 Powered for Now


S252 Next (Car is gonna be fast and Sneezing, lots!)
SHINKS07SS is offline  
Sponsored Links
Advertisement
 
Closed Thread

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