Does anybody know what a code 1249 is and how to fix it? It is for my 01. I tried to ask in that forum but no answers. Thanks for any help.

 

Try ....this....


KH5 DIAGNOSTIC TROUBLE CODE P1249 — CHECK KOEO FOR P1690

• DTC P1249 indicates that the PCM detected the turbo was overboosting.
• Possible causes:
  • short to ground
  • plugged WGC hose or port
  • WGC solenoid
  • WGC actuator
  • WGC valve
  • damaged PCM
• Perform KOEO On-Demand Self Test.

Is DTC P1690 present?
<TABLE cellSpacing=0 cellPadding=3 width="92%" border=1><TBODY><TR><TH width="50%">Yes </TH><TH width="50%">No </TH></TR><TR><TD width="50%">GO to KH1 . </TD><TD width="50%">GO to KH6 . </TD></TR></TBODY></TABLE>
KH6 CHECK WGC HOSES

• Disconnect the RED hose from the WGC actuator.
• Install Gauge Bar 014-00760 vacuum pump or equivalent to the hose.

Does the hose hold vacuum?
<TABLE cellSpacing=0 cellPadding=3 width="92%" border=1><TBODY><TR><TH width="50%">Yes </TH><TH width="50%">No </TH></TR><TR><TD width="50%">GO to KH7 . </TD><TD width="50%">GO to KH8 . </TD></TR></TBODY></TABLE>
KH7 CHECK INTAKE PORT

• Disconnect the RED hose from the charge air cooler housing.

Does hose still hold vacuum?
<TABLE cellSpacing=0 cellPadding=3 width="92%" border=1><TBODY><TR><TH width="50%">Yes </TH><TH width="50%">No </TH></TR><TR><TD width="50%">REPLACE WGC hose. RESTORE vehicle. CLEAR DTCs and RETEST. </TD><TD width="50%">CLEAN out plugged charge air cooler housing hose port. RESTORE vehicle. CLEAR DTCs and RETEST. </TD></TR></TBODY></TABLE>
KH8 CHECK INTERCOOLER PORT

• Disconnect the RED hose from the charge air cooler housing.
• Install vacuum gauge to the port.

Does the port hold vacuum?
<TABLE cellSpacing=0 cellPadding=3 width="92%" border=1><TBODY><TR><TH width="50%">Yes </TH><TH width="50%">No </TH></TR><TR><TD width="50%">CLEAN out the plugged port. RESTORE vehicle. CLEAR DTCs and RETEST. </TD><TD width="50%">GO to KH9 . </TD></TR></TBODY></TABLE>
KH9 CHECK ACTUATOR

• Install vacuum gauge on the WGC actuator.

Does actuator hold vacuum?
<TABLE cellSpacing=0 cellPadding=3 width="92%" border=1><TBODY><TR><TH width="50%">Yes </TH><TH width="50%">No </TH></TR><TR><TD width="50%">CHECK WGC linkage for sticking. REPLACE if necessary. RESTORE vehicle. CLEAR DTCs and RETEST. </TD><TD width="50%">REPLACE WGC actuator. RESTORE vehicle. CLEAR DTCs and RETEST. </TD></TR></TBODY></TABLE>




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Rick, you are the man. where did you find all of that write up and others: on a CD?

 

I tried to rep points but you know.

 

CD ,,Ebay ....

 

Thanks for trying....

 

Action, that is exactly what I needed. The truck is now dead. But I will have a try tomorrow. Thanks very much.
I sent the rep points.

 

Dead ?

what else is wrong?...

 

Well yesterday it was just running bad. This morning it started, a bit hard, but it started. By the end of the day it will turn over but not start. It is down in the teens at night so I am going to plug it in tonight and see what I can find tomorrow. I noticed lately that the idle would go up and down a lot. If it went up I could hit the brake and it would go back to normal. It was runnig ok the last week or so. My partner had it in Florida and just drove back Monday. Tuesday it started being hard to start and running bad after it started. Then by tonight it doesn't start.

 

It turned out to be a combination of water and gel. All cleaned up now and running fine. I still need to look into the code problem, but right now it is not affecting anything. I will wait for a warmer day.

Thanks for all the help.