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P1028 code - 2005 Isuzu Ascender

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Air Control Solenoid - open circuit

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SOURCE: Code P1028 for a 2004 Nissan sentra

this code indicates the engine is running cold, below 160 degrees Fahrenheit, replace the thermostat and clear the code.

Posted on Apr 16, 2009

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Diagnostic code P1028

Hello, If you go to you will find that this code is for a low Starter Relay circuit. At best, I can say to go to get a free "Starter Draw" test at Autozone or another big chain store.
You may have a bad starter relay or a bad ground to the starter or perhaps corroded wiring. It is also listed under the Dodge brand list of Codes. Perhaps searching for Dodge defects will give you a specific repair.
The onboard computers have a general list of defects which are monitored. This warning is something for Suzuki's and Dodge models only. Even the Suzuki Blog had suggested P0128 instead as it was not in the 2002 Model that info was requested for. In that case, it was a transposed number for a bad coolant sensor.
But your defect Code p1028 does exist and I found it at that site with a Browser search.

I hope my solution is helpful. Maybe you can find a Suzuki or Dodge expert for help.

Mar 20, 2012 | 2005 Suzuki Forenza

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Volvo codes

Download this file, it has them listed. You will need Adobe Reader since it is a PDF.
Good luck!!

Feb 13, 2012 | 1999 Volvo C70

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I have a P1028 error code on my 2003 Camry, what does this mean?

Hello good fixya answer seeker

That code basically means the cars coolant temp is under what the thermostat is supposed to keep it at. There are a few things that can cause this issue i shall list them below for you.

1. low coolant level
2. bad thermostat
3. bad coolant temp sensor (sits in the side of the block most of the time)

All of the above are easy to change and cheap first off check the coolant level when car is cold only if that's good change thermostat and gasket cheap and easy if that don't correct the issue change the coolant temp sensor this tells fan when to run and reports temps to Gage.

Please leave 4 thumbs helps me help all of you thanks

May 21, 2011 | 2003 Toyota Camry

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I have a 2005 trailblaizer in have a code p1028

You sure that's not P0128? P0128 is the coolant temperature is too cool. Thermostat is stuck open. Replace thermostat and you're all good to go.

Jan 24, 2011 | 2005 Chevrolet TrailBlazer

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Are you sure its not a code P0128? This would be a code for low coolant tempurature and usually caused by a faulty thermostat.

I don't see a P1028 listed?

Dec 16, 2010 | 2002 Suzuki XL-7

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2003 trailblazer v6 with codes P1133, p1028 & P0171 are these all related? And how serious is this? Whats the worst possible scenario? I'm buring alot of gas with a slight smell of gas?

I've had all these at the same time also. P1133 is your upstream 02 sensor, very easy, maybe 15 min to replace. p1028, is your thermostat reading a low temperature, replace this, or have someone replace it for you. P0171 is the downstream 02, difficult one to do if you're not mechanically inclined. Nothing horrible here, OK to drive, but if you want better gas milleage, get this fixed. The gas smell might be a different problem all togeher, there is a recall from a leaking gas tank.

Oct 18, 2010 | 2003 Chevrolet TrailBlazer

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Check engine light on

this code indicates the engine is running below correct coolant temp (running cold), replace the thermostat and clear the code.

Apr 16, 2009 | 2004 Nissan Sentra

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Code P1028 for a 2004 Nissan sentra

this code indicates the engine is running cold, below 160 degrees Fahrenheit, replace the thermostat and clear the code.

Apr 16, 2009 | Nissan Sentra Cars & Trucks

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