64 replies to this topic

[DarrylB]

Are you only getting a P1516 or are you getting a 5volt reference error to?

If you have an EGR cheater take that out I was having similar problems and it turned out to be the EGR cheater giving up the ghost, although my throttle body was still going through its start up sequence.

Also check the top rear brake light is working

Deano

Just the 1516 error - nowt else!

I do have an EGR cheater....will investigate that too

Vauxhall and Allparts were useless on the relay front....will stick up a wanted thread go eBay trawling too

[DarrylB]

Hi all, still no joy!

Things ive done so far:

Tried Joe's brown and grey relays
Tried Joe's spare ECU, Immob and transponder key - Op comm reports wrong transponder key and I think still the same 1516 error (gonna try again with this in a bit)
A complete continutity test between the pedal and the ECU using the TIS wiring diags - all checked out
A complete continutiy test between the ECU and the throttle body plug - all checked out
Ran 12v to the 'E' & 'F' pins on each Throttle body I have and they all open.

So im now stuck again. Can some one with an NA and op-comm check my values below against what they get? (this is with just the ignition on... no pedal pressed or starter button pressed.) I think the values i've highlighted red may be a bit suspect??

Battery Voltage 12.4 V
Main Relay Active
Fuel Pump Relay Inactive
APP Sensor 1 (Accelerator Pedal Position) 0.98 V
APP Sensor 2 (Accelerator Pedal Position) 4.53 V
Calculated Pedal Position 0%
APP at Idle Position (Accelerator Pedal Position) Active
TP Sensor 1 (Throttle Position) 3.08 V
TP Sensor 2 (Throttle Position) 1.92 V
Calculated Throttle Position 30%
Throttle Position Idle
Engine Speed 0 RPM
MAP Sensor (Manifold Absolute Pressure) 4.79 V
MAP Sensor (Manifold Absolute Pressure) 101 kPa
Coolant Temperature 2.20 V
Coolant Temperature 22 °C
Intake Air Temperature 2.31 V
Intake Air Temperature 21 °C
Vehicle Speed 0 km/h
EGR Valve (Exhaust-Gas Recirculation) Inactive
EGR Position Command (Exhaust- Gas Recirculation) 0%
EGR Position Feedback (Exhaust Gas Recirculation) 1.33 V
Fuel Tank Ventilation Valve 0%
Knock Control Inactive
B1S1 O2 Sensor Heater (Bank 1 Sensor 1) Inactive
B1S1 O2 Sensor (Bank 1 Sensor 1) 451 mV
B1S1 Air/Fuel Ratio (Bank 1 Sensor 1) Rich
B1S2 O2 Sensor Heater (Bank 1 Sensor 2) Inactive
B1S2 O2 Sensor (Bank 1 Sensor 2) 442 mV
B1S2 Air/Fuel Ratio (Bank 1 Sensor 2) Rich
B1 Long Term Fuel Trim (Bank 1) 0%
B1 Short Term Fuel Trim (Bank 1) 0%
Fan Relay 1 Active
Malfunction Indicator (MI) On
Service Vehicle Soon (SVS) Indicator Off
Idle Speed Offset Inactive
Ignition Dwell Angle 0.3 ms
Ignition Spark Angle 4.7 °CA
B1 Knock Sensor Signal (Bank 1) 0.10 V
Knock Retard Cylinder 1 0 °CA
Knock Retard Cylinder 2 0 °CA
Knock Retard Cylinder 3 0 °CA
Knock Retard Cylinder 4 0 °CA
Ignition Status On 12V
ETC Limp Home Mode (Electronic Throttle Control) Inactive
Total Misfire 0
Crank Angle Sensing Error Learn Attempts 0
Fuel Tank Ventilation Valve Inactive
Tank Sensor 0.00 V
Tank Sensor 8 L

Edited by DarrylB, 04 June 2012 - 11:39 AM.

[DarrylB]

Ok, so with Joe's spare ECU i get this:


Total number of fault codes: 2

P1516 - Throttle Actuator Control Position Performance
(00) - Present

P1614 - Wrong Transponder Key
(00) - Present

and this is the live data on the ignition:

Battery Voltage 12.1 V
Main Relay Active
Fuel Pump Relay Inactive
APP Sensor 1 (Accelerator Pedal Position) 0.96 V
APP Sensor 2 (Accelerator Pedal Position) 4.53 V
Calculated Pedal Position 0%
APP at Idle Position (Accelerator Pedal Position) Active
TP Sensor 1 (Throttle Position) 3.08 V
TP Sensor 2 (Throttle Position) 1.92 V
Calculated Throttle Position 32%
Throttle Position Idle
Engine Speed 0 RPM
MAP Sensor (Manifold Absolute Pressure) 4.79 V
MAP Sensor (Manifold Absolute Pressure) 101 kPa
Coolant Temperature 2.83 V
Coolant Temperature 12 °C
Intake Air Temperature 2.69 V
Intake Air Temperature 15 °C
Vehicle Speed 0 km/h
EGR Valve (Exhaust-Gas Recirculation) Inactive
EGR Position Command (Exhaust- Gas Recirculation) 0%
EGR Position Feedback (Exhaust Gas Recirculation) 1.33 V
Fuel Tank Ventilation Valve 0%
Knock Control Inactive
B1S1 O2 Sensor Heater (Bank 1 Sensor 1) Inactive
B1S1 O2 Sensor (Bank 1 Sensor 1) 447 mV
B1S1 Air/Fuel Ratio (Bank 1 Sensor 1) Rich
B1S2 O2 Sensor Heater (Bank 1 Sensor 2) Inactive
B1S2 O2 Sensor (Bank 1 Sensor 2) 434 mV
B1S2 Air/Fuel Ratio (Bank 1 Sensor 2) Rich
B1 Long Term Fuel Trim (Bank 1) 0%
B1 Short Term Fuel Trim (Bank 1) 0%
Fan Relay 1 Active
Malfunction Indicator (MI) On
Service Vehicle Soon (SVS) Indicator Blinking
Idle Speed Offset Inactive
Ignition Dwell Angle 0.3 ms
Ignition Spark Angle 4.7 °CA
B1 Knock Sensor Signal (Bank 1) 0.27 V
Knock Retard Cylinder 1 0 °CA
Knock Retard Cylinder 2 0 °CA
Knock Retard Cylinder 3 0 °CA
Knock Retard Cylinder 4 0 °CA
Ignition Status On 12V
ETC Limp Home Mode (Electronic Throttle Control) Inactive
Total Misfire 0
Crank Angle Sensing Error Learn Attempts 0
Fuel Tank Ventilation Valve Inactive
Tank Sensor 0.00 V
Tank Sensor 8 L

Edited by DarrylB, 04 June 2012 - 01:26 PM.

[leevx2.2]

If Joes ecu was good which it was why you still getting wrong transponder key doesn't make sense . Have you changed pedal ? I would investigate about wrong transponder if you have changed it have you changed chip to suit ? My transponder packed up but I put new one on reprogrammed and all was good

[DarrylB]

How did you reprogram it Lee? I've tried two throttle pedals now...still same error. in fact the error doesn't appear until I push the pedal so that must be doing something. I.e. ignition on > clear codes > *no codes * > push pedal > check codes > *P1516* I can also see the values change in Op com so the ECU knows how far Im pushing the pedal down

[leevx2.2]

You can program with op com but I used tech 2 You shouldn't have any problem with joes ecu as it was all runing and good you checked for any bent pins etc I assume you have . These things are sent to send you crazy . I have another pedal but can't think that you could have 2 duff pedals ?

[DarrylB]

Shall give it a try with Op-comm tomorrow then. Oh yeah - it is driving me crazy! Cheers for the suggestions :thumbs:

[DarrylB]

So im still fighting this, I've managed to test against my mates VX220 Turbo so here are my findings:

Z22SE No throttle:
Battery Voltage 12.3 V
Main Relay Active
Fuel Pump Relay Inactive
APP Sensor 1 (Accelerator Pedal Position) 0.98 V
APP Sensor 2 (Accelerator Pedal Position) 4.53 V
Calculated Pedal Position 0%
APP at Idle Position (Accelerator Pedal Position) Active
TP Sensor 1 (Throttle Position) 3.08 V
TP Sensor 2 (Throttle Position) 1.92 V
Calculated Throttle Position 31%
Throttle Position Idle
Engine Speed 0 RPM

Z20LET No throttle:
Battery Voltage 12.1 V
Main Relay Active
Fuel Pump Relay Inactive
APP Sensor 1 (Accelerator Pedal Position) 0.98 V
APP Sensor 2 (Accelerator Pedal Position) 0.49 V
Calculated Pedal Position 0%
APP at Idle Position (Accelerator Pedal Position) Active
TP Sensor 1 (Throttle Position) 0.80 V
TP Sensor 2 (Throttle Position) 4.22 V
Calculated Throttle Position 0.24%
Throttle Position Idle
Engine Speed 0 RPM

[techieboy]

Not sure how valid this is with mine being SC conversion with a 68mm throttle body but, for what it's worth:

Engine off

Measuring blocks information:

Battery Voltage,12.0 V
Main Relay,Active
Fuel Pump Relay,Inactive
APP Sensor 1 (Accelerator Pedal Position),0.96 V
APP Sensor 2 (Accelerator Pedal Position),4.53 V
Calculated Pedal Position,0 %
APP at Idle Position (Accelerator Pedal Position),Active
TP Sensor 1 (Throttle Position),3.25 V
TP Sensor 2 (Throttle Position),1.73 V
Calculated Throttle Position,30 %
Throttle Position,Idle
Engine Speed,0 RPM
MAP Sensor (Manifold Absolute Pressure),2.28 V
MAP Sensor (Manifold Absolute Pressure),53 kPa
Coolant Temperature,2.63 V
Coolant Temperature,15 °C
Intake Air Temperature,2.59 V
Intake Air Temperature,16 °C
Vehicle Speed,0 km/h
EGR Valve (Exhaust-Gas Recirculation),Inactive
EGR Position Command (Exhaust- Gas Recirculation),0 %
EGR Position Feedback (Exhaust Gas Recirculation),1.45 V
Fuel Tank Ventilation Valve,0 %
Knock Control,Inactive
B1S1 O2 Sensor Heater (Bank 1 Sensor 1),Inactive
B1S1 O2 Sensor (Bank 1 Sensor 1),481 mV
B1S1 Air/Fuel Ratio (Bank 1 Sensor 1),Rich
B1S2 O2 Sensor Heater (Bank 1 Sensor 2),Inactive
B1S2 O2 Sensor (Bank 1 Sensor 2),447 mV
B1S2 Air/Fuel Ratio (Bank 1 Sensor 2),Rich
B1 Long Term Fuel Trim (Bank 1),0 %
B1 Short Term Fuel Trim (Bank 1),0 %
Fan Relay 1,Active
Malfunction Indicator (MI),On
Service Vehicle Soon (SVS) Indicator,Off
Idle Speed Offset,Inactive
Ignition Dwell Angle,0.3 ms
Ignition Spark Angle,4.7 °CA
B1 Knock Sensor Signal (Bank 1),0.10 V
Knock Retard Cylinder 1,0 °CA
Knock Retard Cylinder 2,0 °CA
Knock Retard Cylinder 3,0 °CA
Knock Retard Cylinder 4,0 °CA
Ignition Status,On 12V
ETC Limp Home Mode (Electronic Throttle Control),Inactive
Total Misfire,0
Crank Angle Sensing Error Learn Attempts,0
Fuel Tank Ventilation Valve,Inactive
Tank Sensor,0.00 V
Tank Sensor,8 L


and idling

Measuring blocks information:

Battery Voltage,14.2 V
Main Relay,Active
Fuel Pump Relay,Active
APP Sensor 1 (Accelerator Pedal Position),0.96 V
APP Sensor 2 (Accelerator Pedal Position),4.53 V
Calculated Pedal Position,0 %
APP at Idle Position (Accelerator Pedal Position),Active
TP Sensor 1 (Throttle Position),3.75 V
TP Sensor 2 (Throttle Position),1.25 V
Calculated Throttle Position,18 %
Throttle Position,Idle
Engine Speed,1.114 RPM
MAP Sensor (Manifold Absolute Pressure),1.03 V
MAP Sensor (Manifold Absolute Pressure),30 kPa
Coolant Temperature,1.77 V
Coolant Temperature,31 °C
Intake Air Temperature,2.63 V
Intake Air Temperature,16 °C
Vehicle Speed,0 km/h
EGR Valve (Exhaust-Gas Recirculation),Inactive
EGR Position Command (Exhaust- Gas Recirculation),0 %
EGR Position Feedback (Exhaust Gas Recirculation),1.45 V
Fuel Tank Ventilation Valve,0 %
Knock Control,Inactive
B1S1 O2 Sensor Heater (Bank 1 Sensor 1),Active
B1S1 O2 Sensor (Bank 1 Sensor 1),980 mV
B1S1 Air/Fuel Ratio (Bank 1 Sensor 1),Rich
B1S2 O2 Sensor Heater (Bank 1 Sensor 2),Active
B1S2 O2 Sensor (Bank 1 Sensor 2),447 mV
B1S2 Air/Fuel Ratio (Bank 1 Sensor 2),Rich
B1 Long Term Fuel Trim (Bank 1),0 %
B1 Short Term Fuel Trim (Bank 1),-19 %
Fan Relay 1,Active
Malfunction Indicator (MI),Off
Service Vehicle Soon (SVS) Indicator,Off
Idle Speed Offset,Inactive
Ignition Dwell Angle,0.2 ms
Ignition Spark Angle,1.7 °CA
B1 Knock Sensor Signal (Bank 1),0.37 V
Knock Retard Cylinder 1,0 °CA
Knock Retard Cylinder 2,0 °CA
Knock Retard Cylinder 3,0 °CA
Knock Retard Cylinder 4,0 °CA
Ignition Status,On 12V
ETC Limp Home Mode (Electronic Throttle Control),Inactive
Total Misfire,0
Crank Angle Sensing Error Learn Attempts,0
Fuel Tank Ventilation Valve,Inactive
Tank Sensor,0.00 V
Tank Sensor,8 L

[leevx2.2]

I have a Spare engine loom if you fancy trying that anything is worth ago mate

[DarrylB]

Cheers for that Vocky - That basically matches what I get with the engine off - the only readings that are slightly different in the MAP sensor, but that might be down doto the fact that I took my readings on in he middle of the day on warmish day? I think Joe's finger pointing at the immobiliser could be correct... Anyone got a spare one of them i can try :-S If you could send that loom my Lee that would be great! like you say anything is worth a go....!

[siztenboots]

Coolant Temperature,31 °C
and
Fan Relay 1,Active

is that right? the rad fan was on?

[DarrylB]

I guess so - It even says that on Vocky's Techies' outputs

Edit- I'm failing apart. please excuse silly mistakes

Edited by DarrylB, 08 June 2012 - 09:35 AM.

[techieboy]

Coolant Temperature,31 °C
and
Fan Relay 1,Active

is that right? the rad fan was on?

Nope, rad fan wasn't on. Guess when it's switched to earth to start the fan, the value changes to 0. Maybe.

[vocky]

you should follow test C-07 throttle Valve Positioner Circuit on TIS, page 130

http://www.speedster...el-Vauxhall.pdf

[DarrylB]

I'll be following that doc to the letter over the weekend! Cheers :-)

[Exmantaa]

Ok, so with Joe's spare ECU i get this:


Total number of fault codes: 2

P1516 - Throttle Actuator Control Position Performance
(00) - Present

P1614 - Wrong Transponder Key
(00) - Present

and this is the live data on the ignition:

Battery Voltage 12.1 V
Main Relay Active
Fuel Pump Relay Inactive
APP Sensor 1 (Accelerator Pedal Position) 0.96 V
APP Sensor 2 (Accelerator Pedal Position) 4.53 V
Calculated Pedal Position 0%
APP at Idle Position (Accelerator Pedal Position) Active
TP Sensor 1 (Throttle Position) 3.08 V
TP Sensor 2 (Throttle Position) 1.92 V
Calculated Throttle Position 32%
Throttle Position Idle
Engine Speed 0 RPM
MAP Sensor (Manifold Absolute Pressure) 4.79 V
MAP Sensor (Manifold Absolute Pressure) 101 kPa
Coolant Temperature 2.83 V
Coolant Temperature 12 °C
Intake Air Temperature 2.69 V
Intake Air Temperature 15 °C
Vehicle Speed 0 km/h
EGR Valve (Exhaust-Gas Recirculation) Inactive
EGR Position Command (Exhaust- Gas Recirculation) 0%
EGR Position Feedback (Exhaust Gas Recirculation) 1.33 V
Fuel Tank Ventilation Valve 0%
Knock Control Inactive
B1S1 O2 Sensor Heater (Bank 1 Sensor 1) Inactive
B1S1 O2 Sensor (Bank 1 Sensor 1) 447 mV
B1S1 Air/Fuel Ratio (Bank 1 Sensor 1) Rich
B1S2 O2 Sensor Heater (Bank 1 Sensor 2) Inactive
B1S2 O2 Sensor (Bank 1 Sensor 2) 434 mV
B1S2 Air/Fuel Ratio (Bank 1 Sensor 2) Rich
B1 Long Term Fuel Trim (Bank 1) 0%
B1 Short Term Fuel Trim (Bank 1) 0%
Fan Relay 1 Active
Malfunction Indicator (MI) On
Service Vehicle Soon (SVS) Indicator Blinking
Idle Speed Offset Inactive
Ignition Dwell Angle 0.3 ms
Ignition Spark Angle 4.7 °CA
B1 Knock Sensor Signal (Bank 1) 0.27 V
Knock Retard Cylinder 1 0 °CA
Knock Retard Cylinder 2 0 °CA
Knock Retard Cylinder 3 0 °CA
Knock Retard Cylinder 4 0 °CA
Ignition Status On 12V
ETC Limp Home Mode (Electronic Throttle Control) Inactive
Total Misfire 0
Crank Angle Sensing Error Learn Attempts 0
Fuel Tank Ventilation Valve Inactive
Tank Sensor 0.00 V
Tank Sensor 8 L

Your MAP sensor readings are off, so replace that first before you continue.
(was there not another topic about faulty MAP on an SC?)

[DarrylB]

Thanks Exmantaa - one more thing to try! Will hunt one of those down. EDIT: Mines not an SC though and Techie's is, so would that explain the differences in the MAP readings? or is mine just off anyway?

Edited by DarrylB, 08 June 2012 - 12:06 PM.

[vocky]

if the map reading is wrong the ecu will think the throttle position is wrong

[DarrylB]

if the map reading is wrong the ecu will think the throttle position is wrong

RIGHT! new MAP it is! another PM to liz it is then. Might be able to pop to Vauxhall on my lunch abd see if they have one in stock

Can't thank people enough for there input on this