2002 Chevy Trailblazer 4 CODES. FIXED 2, STILL SAME CODES

Tiny
SHYGYRL136
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
Computer problem
2002 Chevy Trailblazer 6 cyl Two Wheel Drive Automatic

I WENT TO GET MY CAR INSPECTED, AND IT FAILED DUE TO 4 CODES THAT POPPED UP. THE INSPECTOR SAID THAT THE 1ST 2 WERE EMISSION RELATED AND THE LAST 2 WERENT, SO TO JUST FIX THE 2 MAIN CODES. MY HUSBAND CHANGED MAP SENSOR, AND O2 SENSOR, DISCONNECTED BATTERY TO RESET, AND THE CHECK ENGINE LIGHT IS STILL ON. WE TOOK IT BACK TO GET IT RE-INSPECTED AND IT FAILED AGAIN WITH THE SAME 4 CODES. CAN YOU PLEASE HELP. AND DOES IT MATTER HOW LONG YOU KEEP THE BATTERY CABLES OFF TO RESET?THX.
HERE ARE THE CODES:P0105, P0130, P0014, P1345
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Friday, January 9th, 2009 AT 8:00 AM

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Tiny
BRIAN 1
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First will start with p0105:On rare occasions, a SES light may be experienced due to DTCs P0105, P0106, and/or P0506. There may or may not be an idle complaint accompanying the SES light. This may be due to excessive carbon build up in the throttle body.

Recommendation/Instructions:
If the SI diagnostics do not isolate a cause for this concern, clean the throttle body bore and plate for evaluation.

Now p0130:On rare occasions, a SES Light may be encountered due to a P0130 DTC.

Recommendation/Instructions:
If the P0130 SI diagnostics do not isolate the cause, install the latest PCM calibrations. As of February 23, 2004, all available TIS2000 PCM calibrations contain O2 sensor diagnostic enhancements. Also, replace the Position 1 O2 sensor with Part Number 12577588, which contains an updated connector.

Now p0014:Some customers may comment on the Service Engine Soon lamp being illuminated, a delayed transmission downshift and/or excessive fan noise. Upon investigation, the technician may find either a DTC P0014 (Cam Phaser Performance), DTC P0116 (High Sided Coolant Rationality) and/or DTC P1683 (Low Power Counter Failure).

Correction
Reprogram the powertrain control module (PCM) on all affected vehicles, as identified above, including vehicles in new dealer inventory, used inventory, and any that return for service in or out of warranty.

Using a Tech 2 scan tool and TIS 2000, verify that the calibration programmed into the vehicle's PCM has been programmed since August, 2001 or later. The GM Vehicle Inquiry System (GM VIS) may also be checked to see if the vehicle has been programmed since August, 2001. If the August, 2001 or later updated calibration has not been installed, reprogram the PCM with the latest updated calibration from TIS 2000 version 8.5 for 2001 data update or later.

P1345:Some 2002 - 2004 models that are equipped with the 4.2L (VIN S - RPO LL8) engine may experience a SES Light due to a P0016 or P1345 DTC and a possible rough idle.

Recommendation/Instructions:
If the SI diagnostics do not isolate a cause, the following information may help:

" Control of the Cam Phaser Actuator solenoid is inhibited when a P0016 (04 Model Year) or P1345 (02 - 03 Model Year) DTC is stored.

" If this DTC started after recent internal engine repairs, inspect for proper engine mechanical timing. With the camshaft cover removed and the #1 cylinder at top dead center, make sure that the darkened chain links are lined up with the alignment marks on the exhaust and intake cam sprockets. At this point, J44221 should fit over the rear cam flats and the word Delphi (on the front of the Cam Phaser Actuator sprocket) should be parallel with the front edge of the cylinder head. Note: It may take up to 14 crankshaft revolutions before all timing alignment marks line up with each other.

" Engines built after 2/5/01 include a thin friction washer (P/N 12573950) between the dampener and the crank gear and the torque specification was increased to 110 ft-lbs plus 180 degrees to prevent crankshaft gear and alignment pin damage. If there is any history of the crank dampener bolt ever being loose, the crankshaft gear and alignment pin may be damaged, which can cause these DTCs.

" If a P0016 or P1345 is resetting without any engine performance concerns but the SI diagnostics and the above information did not isolate a cause for the DTC, replace the Cam Phaser Actuator sprocket.

Disconnecting the battery on new or newer vehicles doesn't work anymore, it still holds the codes until it's fixed or cleared with a scan tool, and if it's not fixed once the sys tests itself and see's a problem the ses light will come back on. Post back with what you find or any other questions.
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Friday, January 9th, 2009 AT 9:25 AM

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