So i was driving home from work and i noticed something unusual..everytime i turned left my car wouldsputter, stumble and hesitate bad and die. going straight or turning right its fine..no problems. The Reduced Engine Power light came on and i barely got it into my driveway. I checked the codes and got 5...P0135, P1133, P1153, P1514, and P1516. Looking around i noticed i am leaking coolant in steady drops. Maybe waterpump needs replaced again idk. but dont think its related. I checked all 3 coils and found one to have a lower reading than the other 2 and also the cable was loose and barely on the coil...maybe answering why it would die and sputter when turning left. I replaced the coil and cable and thought i fixed the problem but once the car warms up to normal temp(.idling) it starts to sputter and dies. I dont know wat else to do... P1514 and 1516 are related to throttle body right? Before i replaced the coil i couldnt get the car to start up at all. now it starts but as soon as it gets close to normal temp it stumbles and sputters and starts to die so i turn the car off. After getting the codes i cleared them off. no check engine light is on but i havent had a chance to drive it either. Any Ideas...

 

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This code refers to the front oxygen sensor on Bank 1. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0135.

A code P0135 may mean that one or more of the following has happened:

O2 Heater element resistance is high
Internal short or open in the heater element
O2 heater circuit wiring high resistance
open or short to ground in the wiring harness

Repair short or open or high resistance in wiring harness or harness connectors
Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)

02s could be failing or wiring to 02s could be damaged or shorting.


P1133 - HO2S Insufficient Switching Bank 1 Sensor 1
P1153 - HO2S Insufficient Switching Bank 2 Sensor 1

01514 is a air flow issue, could be tps failing.

 

i started it up earlier and it starts runs and revs with no problem. i let it get to normal temp still good. So i back it up and down the driveway 5 0r 6 times and all the sudden it sputters and dies instantly. finally got it to start and parked it. sooo idk. should i replace tps and O2 sensors. not sure wat to do first.

 

oh and also the reduced engine power light came on again when it died. no check engine light though

 

thats something to do with the thottle body, at least thats what i keep seeing. test the thottle position sensor. this is where a good scanner would come in handy, when it wont run you could look to see what the tps is sensing

 

Your car is drive by wire, no throttle cable. Code P1516 has to do with your (TAC) Throttle Actuator Control Module. If that's faulty, you will get a reduced engine power function. Also have your battery load tested and check your alternator output. A low voltage condition to the TAC can also throw a code 1516, and throw it into the reduced engine power mode.

 

ahhh,,, forgot about the cableless throttle. sure glad i have old school,,, sorta,

 

Where is the Tps on a 2002 3800

 

does not have one. it has a thottle acutator contol system. tac, tac module is on the gas peddle and the tac motor is in the thottle body

 

Ok well I cleaned the mass airflow sensor with crc maf sensor cleaner and cleaned the throttle body out (which was very dirty). New air filter and fired it up. Idled and revved perfect and after 25min it stumbled and died instantly. And it wont start. Ill be able to start it tomorrow and it will do the same thing run perfect for 25min and then die. So should I replace the mass airflow sensor or wat.