code 1249
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code 1249
2002 7.3 psd ,motorcraft ais intake, 4 inch exhaust ,gearhead tunes, riffraff billet wheel and boots on all turbo pipes , was pulling 1500 lb rv up back mountain in tune 3 wot running about 52 to 55 mph egts about 1100 light comes on all the time pulling on down side light goes off ,when i get to campground check codes i get 1211 1249 340 and603 help 
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This should help you out.
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?
Yes.............No
GO to KH1 . GO to KH6 .
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?
Yes.............No
GO to KH7 . GO to KH8 .
KH7 CHECK INTAKE PORT
Disconnect the RED hose from the charge air cooler housing.
Does hose still hold vacuum?
Yes.............No
REPLACE WGC hose. RESTORE vehicle. CLEAR DTCs and RETEST. CLEAN out plugged charge air cooler housing hose port. RESTORE vehicle. CLEAR DTCs and RETEST.
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?
Yes............................................... ...............................................No
CLEAN out the plugged port. RESTORE vehicle. CLEAR DTCs and RETEST. GO to KH9 .
KH9 CHECK ACTUATOR
Install vacuum gauge on the WGC actuator.
Does actuator hold vacuum?
Yes.............No
CHECK WGC linkage for sticking. REPLACE if necessary. RESTORE vehicle. CLEAR DTCs and RETEST. REPLACE WGC actuator. RESTORE vehicle. CLEAR DTCs and RETEST.
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?
Yes.............No
GO to KH1 . GO to KH6 .
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?
Yes.............No
GO to KH7 . GO to KH8 .
KH7 CHECK INTAKE PORT
Disconnect the RED hose from the charge air cooler housing.
Does hose still hold vacuum?
Yes.............No
REPLACE WGC hose. RESTORE vehicle. CLEAR DTCs and RETEST. CLEAN out plugged charge air cooler housing hose port. RESTORE vehicle. CLEAR DTCs and RETEST.
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?
Yes............................................... ...............................................No
CLEAN out the plugged port. RESTORE vehicle. CLEAR DTCs and RETEST. GO to KH9 .
KH9 CHECK ACTUATOR
Install vacuum gauge on the WGC actuator.
Does actuator hold vacuum?
Yes.............No
CHECK WGC linkage for sticking. REPLACE if necessary. RESTORE vehicle. CLEAR DTCs and RETEST. REPLACE WGC actuator. RESTORE vehicle. CLEAR DTCs and RETEST.
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