I love my 2003 Jetta but lately its been one repair after another.

I’m trying to figure out the starting problems that are killing me lately. At first I thought it was the fuel pump, but when I cycle the ignition, I can hear the winding up of the pump, so I've ruled that out. I moved toward the "spark" question and replaced the plugs/wires, to no avail. I also swapped the fuel pump relay, and the problem is still there.

The car has 103,000 miles on it

I took it to Auto Zone last night and got 7 error codes pop up, each cylinder is reading a low fuel mixture (4 codes), and I'm told that injector cleaner might help that. I also got an O2 sensor error.

P0261 – Cylinder 1 Injector Circuit Low
P0267 – Cylinder 3 Injector Circuit Low
P0270 – Cylinder 4 Injector Circuit Low
P0264 – Cylinder 2 Injector Circuit Low

P0443 – Evaporative Emission Control System Purge Control Valve Circuit
P0037 – H02S Heater Control Circuit Low (Bank 1 Sensor 2)
P0418 – Secondary Air Injection System Relay “A” Circuit Malfunciton

Last night, the battery was dead (partially because I drained it while trying to start it), but when I jumped it, the car started right up and ran fine. I put injector cleaner in and drove about 20 miles, car ran great. Got home and tried to restart it, and it started right up..then came back 20 minutes later and the car just cranked and cranked but wouldnt turnover.

 

Welcome to the forum.

VAG Error Code: 16645
EOBD II Error Code: P0261

VAG Error Code: 16648

EOBD II Error Code: P0264

Fault Location:
Injector 2 (N31) - Circuit Low

Possible Cause:
Wiring short to earth.
Injector.
Engine control module (ECM).

VAG Error Code: 16651

EOBD II Error Code: P0267

Fault Location:
Injector 3 (N32) - Circuit Low

Possible Cause:
Wiring short to earth.
Injector.
Engine control module (ECM).


VAG Error Code: 16654

EOBD II Error Code: P0270

Fault Location:
Injector 4 (N33) - Circuit Low

Possible Cause:
Wiring short to earth.
Injector.
Engine control module (ECM).

VAG Error Code: 16827
EOBD II Error Code: P0443

Fault Location:
Evaporative Emission (EVAP) Canister Purge Valve (N80) - Circuit Malfunction

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) Triggered on first occurrence.
Wiring.
Evaporative emission (EVAP) canister purge valve (N80).
Engine control module (ECM).

VAG Error Code: 16421

EOBD II Error Code: P0037

Fault Location:
Heated Oxygen Sensor (HO2S) 2 (G39), Bank 1, Heater Control - Circuit Low

Possible Cause:
Wiring short to earth.
Heated oxygen sensor (HO2S) (G39).
Engine control module (ECM).

VAG Error Code: 16802

EOBD II Error Code: P0418

Fault Location:
Secondary Air Injection (AIR) Pump Relay A (J299) - Circuit Malfunction

Possible Cause
Wiring.
Secondary air injection (AIR) pump relay (J229).

As taken from my https://volkswagenforum.com/forum/ge...oftware-34973/

https://volkswagenforum.com/forum/ne...gnature-34185/

 

I have the exact same problem code for code with my 03 Jetta. What was the fix???