2008 MK7 EURO-4 Crank but No Start

[Fiiz]

Reposting just so we start from a clean slate.

Van is still a non runner. PCM self test checks out. Issues I have found

1. Fuel pressure is very low, half of desired pressure on start up. (10-15k to 36k desired pressure on forscan live data)

2. DTC checks shows that I do have an EGR issue (possible valve stuck open?)

3. Starting sounds like im low on compression. I may try a compression test but worried of snapping the glow plugs. Car hasnt run in 5 years and is pretty crusty.

Heres a screenshot of the fuel pump on crank:

capture 2.PNG

capture 1.PNG

[Chrispduck]

Is the cam and crank sync ok

[Fiiz]

Is the cam and crank sync ok

Cam and crank are in sync yes.

[Fiiz]

DTC scan

===PCM DTC P2120:84-2F===
Code: P2120 - Throttle/Pedal Position Sensor/Switch D Circuit

Additional Fault Symptom (:84):
- Signal Below Allowable Range

Status (-2F):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Freeze Frame #1:
-EVENT_TIME: 79146 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
-MODULE_VOLTAGE: 12.5 V - Control Module Voltage
===END PCM DTC P2120:84-2F===

===PCM DTC P0110:15-2F===
Code: P0110 - Intake Air Temperature Sensor 1 Circuit (Bank 1)

Additional Fault Symptom (:15):
- Circuit Short To Battery Or Open

Status (-2F):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Freeze Frame #1:
-EVENT_TIME: 91373 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
-MODULE_VOLTAGE: 12.3 V - Control Module Voltage
===END PCM DTC P0110:15-2F===

===PCM DTC P0340:24-28===
Code: P0340 - CMP Sensor A Circuit (Bank 1 or Single Sensor)

Additional Fault Symptom (:24):
- Signal Stuck High

Status (-28):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

This DTC may be caused by :

Incorrect camshaft timing

Wiring Harness Short to Battery or Short to Ground

Damaged or contaminated connector

CMP sensor

Freeze Frame #1:
-EVENT_TIME: 91373 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
-MODULE_VOLTAGE: 8.0 V - Control Module Voltage
===END PCM DTC P0340:24-28===

===PCM DTC P068A:00-28===
Code: P068A - ECM/PCM Power Relay De-Energized - Too Early

Status (-28):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Diagnostic Trouble Code details

This DTC may be caused by :

An intermittent fault.

Damaged or faulty relay

Damaged or contaminated connector

Check the wiring and the appropriate fuse.

There could be a intermittent wiring fault. Check the wiring harness.

Freeze Frame #1:
-EVENT_TIME: 91372 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
===END PCM DTC P068A:00-28===

===PCM DTC U0121:00-28===
Code: U0121 - Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A'

Status (-28):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Freeze Frame #1:
-EVENT_TIME: 91372 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
-MODULE_VOLTAGE: 12.3 V - Control Module Voltage
===END PCM DTC U0121:00-28===

===PCM DTC P1402:16-AF===
Code: P1402 - EGR valve position sensor / wiring

Additional Fault Symptom (:16):
- Circuit Voltage Below Threshold

Status (-AF):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is On for this DTC

Module: Powertrain Control Module

Freeze Frame #1:
-EVENT_TIME: 91373 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
===END PCM DTC P1402:16-AF===

===PCM DTC P1409:77-AF===
Code: P1409 - EGR Vacuum Regulator Solenoid Circuit

Additional Fault Symptom (:77):
- Commanded Position Not Reachable

Status (-AF):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is On for this DTC

Module: Powertrain Control Module

Freeze Frame #1:
-EVENT_TIME: 91372 s - Event time
-TOTAL_DISTANCE: 453297 km - Total Distance
-MODULE_VOLTAGE: 12.0 V - Control Module Voltage
===END PCM DTC P1409:77-AF===

===OBDII DTC P1409-C===
Code: P1409 - EGR Vacuum Regulator Solenoid Circuit

Status (-43):
- Confirmed - malfunction is confirmed

Module: On Board Diagnostic II

===END OBDII DTC P1409-C===

===ABS DTC None===
Successful DTC reading, no error codes found

Module: Antilock braking system

===END ABS DTC None===

===BCMii DTC B1052:29-0A===
Code: B1052 - Rear Washer Switch

Additional Fault Symptom (:29):
- Signal Invalid

Status (-0A):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Control Module

===END BCMii DTC B1052:29-0A===

===BCMii DTC B1051:23-48===
Code: B1051 - Front Washer Switch

Additional Fault Symptom (:23):
- Signal Stuck Low

Status (-48):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC
- Test not complete

Module: Body Control Module

===END BCMii DTC B1051:23-48===

===BCMii DTC B1052:23-48===
Code: B1052 - Rear Washer Switch

Additional Fault Symptom (:23):
- Signal Stuck Low

Status (-48):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC
- Test not complete

Module: Body Control Module

===END BCMii DTC B1052:23-48===

===BCMii DTC B1029:16-0A===
Code: B1029 - Accelerator Pedal Sensor

Additional Fault Symptom (:16):
- Circuit Voltage Below Threshold

Status (-0A):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Control Module

===END BCMii DTC B1029:16-0A===

===BCMii DTC B1093:14-0A===
Code: B1093 - Battery 'B' Close Relay

Additional Fault Symptom (:14):
- Circuit Short To Ground Or Open

Status (-0A):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Control Module

===END BCMii DTC B1093:14-0A===

===BCMii DTC B1094:14-0A===
Code: B1094 - Battery 'B' Open Relay

Additional Fault Symptom (:14):
- Circuit Short To Ground Or Open

Status (-0A):
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Control Module

===END BCMii DTC B1094:14-0A===

===BCMii DTC U0121:00-08===
Code: U0121 - Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A'

Status (-08):
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Body Control Module

===END BCMii DTC U0121:00-08===

===RCM DTC B1318===
Code: B1318 - The battery voltage level is too low.

Module: Restraint Control Module

Diagnostic Trouble Code details

The battery voltage level is too low.

Possible causes are:

Battery voltage line - open or short

Poor battery condition

===END RCM DTC B1318===

===ACM DTC None===
Successful DTC reading, no error codes found

Module: Audio Control Module

===END ACM DTC None===

===IPC DTC None===
Successful DTC reading, no error codes found

Module: Instrument Panel Control Module

===END IPC DTC None===

[metalworker0]

with all those things going on my guess is you have trouble with the battery, earths and thick positive cables.
lot needs taking off ..cleaning up of the terminals, battery voltage both bats should measure at least 12.3v with engine not running.

electronics don't like anything below 11.75 volts ..makes the lot behave erratically and show fault codes.

forget your diagnostics until you're sorted the above .

also cranking with no start will run the batteries down to a point where the electronics play up...think you need a back-up start-and-charge unit, to keep things happy

all the best....mark

[Fiiz]

with all those things going on my guess is you have trouble with the battery, earths and thick positive cables.
lot needs taking off ..cleaning up of the terminals, battery voltage both bats should measure at least 12.3v with engine not running.

electronics don't like anything below 11.75 volts ..makes the lot behave erratically and show fault codes.

forget your diagnostics until you're sorted the above .

also cranking with no start will run the batteries down to a point where the electronics play up...think you need a back-up start-and-charge unit, to keep things happy

all the best....mark

Brand new battery in, forscan logs 12.4V. I've cleared the codes and rescanned them, alot of it looks to be old codes. New scan below

===PCM DTC P1409:77-2F===
Code: P1409 - EGR Vacuum Regulator Solenoid Circuit

Additional Fault Symptom (:77):
- Commanded Position Not Reachable

===PCM DTC P0110:15-2F===
Code: P0110 - Intake Air Temperature Sensor 1 Circuit (Bank 1)

Additional Fault Symptom (:15):
- Circuit Short To Battery Or Open

===PCM DTC P2120:84-2F===
Code: P2120 - Throttle/Pedal Position Sensor/Switch D Circuit

Additional Fault Symptom (:84):
- Signal Below Allowable Range

===PCM DTC P1402:16-2F===
Code: P1402 - EGR valve position sensor / wiring

Additional Fault Symptom (:16):
- Circuit Voltage Below Threshold

===OBDII DTC None===
Successful DTC reading, no error codes found

Module: On Board Diagnostic II

===END OBDII DTC None===

===ABS DTC None===
Successful DTC reading, no error codes found

Module: Antilock braking system

===END ABS DTC None===

===BCMii DTC B1052:29-0A===
Code: B1052 - Rear Washer Switch

Additional Fault Symptom (:29):
- Signal Invalid

===BCMii DTC B1051:23-0A===
Code: B1051 - Front Washer Switch

Additional Fault Symptom (:23):
- Signal Stuck Low


===BCMii DTC B1052:23-0A===
Code: B1052 - Rear Washer Switch

Additional Fault Symptom (:23):
- Signal Stuck Low


===BCMii DTC B1029:16-0A===
Code: B1029 - Accelerator Pedal Sensor

Additional Fault Symptom (:16):
- Circuit Voltage Below Threshold

[metalworker0]

well ..you've cancelled the batteries as possible cause, but with that many codes i would still be checking earths ..thick positive cables ..terminals, even those attached to the alternator .

as this is a 2008 van which means its 16 years old, plenty of time for corrosion to set in-between terminals and washers , even threaded holes.

Eliminate that as a cause first .


all the best.mark