: Check engine



delonne
12-03-10, 09:57 PM
P0402 P1157 P1137 P1101 P0128 ARE MY CODES.

ALSO THERE ARE TIMES WHEN THE COOLANT GUAGE IN THE CAR DOES NOT REGISTER TEMPERATURE. TURN CAR OFF ON THEN IT WILL REGISTER.
NEVER OVERHEATED NEVER HAD A PROBLEM.

AIRFILTER HAS BEEN CHANGED MAP SENSOR WAS SPRAYED WITH CLEANER.

ANY ADVICE BEFORE I TAKE IT TO THE DEALER.

79k MILES
I ROUTINELY DRIVE FAST 80 OR BETTER MOST OF MY DRIVING IS EWAY.

PLEASE SHARE YOUR EXPERIENCES.

C&C
12-04-10, 08:53 AM
Looks like maybe your coolant temperature sensor is not functioning correctly, which in turn is opening your EGR valve and creating a lean condition. (that's what my code reader is alluding to; perhaps someone with more experience can shed more light on the codes you presented)

txbest1980
12-04-10, 04:39 PM
P0402 - Exhaust Gas Recirculation Flow Excessive Detected
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature
P1101 - Actual measured airflow from MAF, MAP, EGR, and TP is not within range of the calculated airflow
P1137 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Lean System or Low Voltage
P1157 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Lean System or Low Voltage

check all of your vacuum hoses...those O2 sensors are after the cat so they are probably not bad, they just arent getting the air back there. how is your coolant level?

delonne
12-04-10, 11:32 PM
The coolant level reads the proper level when hot. I will inspect the vaccum lines for leaks.:suspense:

delonne
12-04-10, 11:35 PM
how many miles to drive before I can expect the computer to remove the codes once the the problem is resolved.

C&C
12-05-10, 04:48 AM
how many miles to drive before I can expect the computer to remove the codes once the the problem is resolved.

It used to take seven 'startups' and engine getting up to operating temperature (computer going into closed loop function) without an error to reset the CEL.

EChas3
12-05-10, 01:02 PM
The coolant level reads the proper level when hot. I will inspect the vaccum lines for leaks.:suspense:

Coolant level should be checked cold (half-full).

delonne
01-04-11, 11:24 PM
It was a lose Vaccum line. The line that connected to the air intake, near the air filter. Codes went away. 1000 miles later new codes. P2108 p0420. seems like i cant win.

delonne
01-06-11, 10:50 PM
Went to the dealer, they read the codes and changed a cat and ECM. Also serviced the throttle and intake, cleaned the carbon off the pistons or something to that effect.

EChas3
01-07-11, 11:29 PM
Did they warranty your cat? I noticed much improved throttle response after TB service (< $100). I recommend every 50,000 miles.

delonne
01-12-12, 07:20 PM
Yes cats are warranted by federal law up to 80k