'HDi's for Dummies' diagrams?
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Re: 'HDi's for Dummies' diagrams?
so the next installment....
out this morning, stripped off the gubbins again and found an open ended fitting on the vac reservoir
pipe connected to it and tee'd in to the pipe from the vac pump and to the solenoid on AC, seemed the most logical way the way the plastic pipes sat?
out for test, still the same , flat as....no boost
this was on the faults log from drive
actuator tests...
fuel flow reg...OK
fuel press reg...OK
EGR valve ...clicks
EGR electrovalve...not at first but faintly when pipes to Vac res were swapped, low vac pressure?
inlet air heater throttle electro...OK
Turbo pressure...not at first, again better when vac res pipes swapped
live data screenshots, stationary...excuse the quality, phone got a bit grubby
off out to lunch later and then a sit down in a dark room and a sob in the corner
i'm reluctant to take off EGR at moment, no time and may not achieve anything
out this morning, stripped off the gubbins again and found an open ended fitting on the vac reservoir
pipe connected to it and tee'd in to the pipe from the vac pump and to the solenoid on AC, seemed the most logical way the way the plastic pipes sat?
out for test, still the same , flat as....no boost
this was on the faults log from drive
actuator tests...
fuel flow reg...OK
fuel press reg...OK
EGR valve ...clicks
EGR electrovalve...not at first but faintly when pipes to Vac res were swapped, low vac pressure?
inlet air heater throttle electro...OK
Turbo pressure...not at first, again better when vac res pipes swapped
live data screenshots, stationary...excuse the quality, phone got a bit grubby
off out to lunch later and then a sit down in a dark room and a sob in the corner
i'm reluctant to take off EGR at moment, no time and may not achieve anything
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Re: 'HDi's for Dummies' diagrams?
Here's the data on those codes:
Engine ECU SIEMENS SID803
P0102
P2562
P0299
Engine ECU SIEMENS SID803
P0102
Fault Code | P0102 |
After Sales Description of the Fault Code | Flowmeter Signal: Measured Flow Less Than the Minimum Flow |
Description of the Diagnostics | The Signal issued From the Sensor is Outside the Electrical Tolerance (Frequency too High) |
Conditions of Activation of the Diagnostics | Battery Voltage More Than 7,45 V |
Conditions of Disappearance of the Fault | Ignition On |
Down-Grade Modes If Fault Present | The Engine ECU No Longer Regulates the EGR Valve |
Switching On of the Warning Lamp and /or Warning Message | Warning Lamp MIL |
Main Customer Complaints Likely | Lack of Power |
Suspect Areas | Air Flow Meter Electrical Harness |
P2562
Fault Code | P2562 |
After Sales Description of the Fault Code | Turbo Position Copy Signal Fault: Positive Gap Between the Reference Turbo Position And the Position Measured |
Description of the Diagnostics | the Fault is Forwarded If the Difference Between the Reference Value is Above 30% at the Actual Position (For at Least 8 Seconds) |
Conditions of Activation of the Diagnostics | Engine Speed Above 1500 RPM Engine Torque Higher Than 120Nm |
Conditions of Disappearance of the Fault | Driving For 5 Minutes |
Down-Grade Modes If Fault Present | Inhibition of the Flowmeter Plausibility Faults Torque Limitation For Traction Control Deactivation of Forced Regeneration of the Particle Filter By the Diagnostic Tool Switching On of the Warning Lamp And/Or Warning Message |
Main Customer Complaints Likely | Lack of Power Noise Smoke From the Exhaust |
Suspect Areas | Turbocharger Position Copy Sensor Electrical Harness Connector Vacuum Problem The Variable Geometry of the Turbocharger is Locked Particle Filter Air Metering Valve |
P0299
Fault Code | P0299 |
After Sales Description of the Fault Code | Turbocharger Pressure Signal: Pressure Too Low In Relation To the Reference Value |
Description of the Diagnostics | Difference Negative For 10 Seconds, Between the Turbo Pressure Reference and the Measured Turbo Pressure: the Turbocharger Pressure is Below 800 Mbars at the Reference Point, For An External Temperature of 20 °C And at An Altitude of 0 M |
Conditions of Activation of the Diagnostics | Engine Speed Above 1000 RPM The Actual Engine Torque is Higher Than 70 Nm |
Conditions of Disappearance of the Fault | Driving For 5 Minutes |
Down-Grade Modes If Fault Present | Downgrade ASR Mode (Torque Limitation For Traction Control) Deactivation of the ASR (Wheel Anti-Skid ) Deactivation Speed Limiter Until the Next Time the Ignition is Switched On Deactivation of the Speed Limiter Deactivation of the Cruise Control Deactivation Cruise Control Until the Next Time the Ignition is Switched On Closing of the EGR (Exhaust Gas Recycling) Valve Switching On of the Warning Lamp and / or Warning Message |
Main Customer Complaints Likely | Lack of Power Noise Smoke From the Exhaust |
Suspect Areas | Air Meter Restricted Clogged Air Filter Obstacle Obstructing the Air Passage Air Lock Between Compressor And Engine Turbocharging Pressure Sensor Turbocharger Position Copy Sensor Vacuum Problem Turbocharger |
Please Don't PM Me For Technical Help
Marc
Marc
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Re: 'HDi's for Dummies' diagrams?
I think your car would benefit from an overhaul of the vacuum actuation system.
I'm sure getting hold of thin bore rigid pipe wouldn't be too hard and then you could replace all of the questionable tube.
I'm sure getting hold of thin bore rigid pipe wouldn't be too hard and then you could replace all of the questionable tube.
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Re: 'HDi's for Dummies' diagrams?
thanks all so far....
so could still be anything at moment although most likely EGR / Turbo press sensor or vacuum
any easy checks to check for vac pressure/pump?
EGR needs cleaning that's probably a given but not able to do immediately.
P0299 code doesn't affect the Cruise, that still works surprisingly, the X7 before was very fickle on that
would benefit from a new temp sensor in inlet/doser maybe?
turbo copy position / pressure sensor as well
i'm slowly getting to the tipping point of money vs common sense
so could still be anything at moment although most likely EGR / Turbo press sensor or vacuum
any easy checks to check for vac pressure/pump?
EGR needs cleaning that's probably a given but not able to do immediately.
P0299 code doesn't affect the Cruise, that still works surprisingly, the X7 before was very fickle on that
would benefit from a new temp sensor in inlet/doser maybe?
turbo copy position / pressure sensor as well
i'm slowly getting to the tipping point of money vs common sense
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Re: 'HDi's for Dummies' diagrams?
I think the pressure sensor in your inlet manifold would benefit from being changed myself. It's probably full of that carbon gunk, possibly clogging the diaphragm.
Also, you may need a new MAF (that includes a temp sensor) as the inlet temp of -49 wont be helping things.
The main issue seems to be the vacuum system that actuates the turbo, if there are no vac leaks then I'd suspect the solenoid valve.
Also, you may need a new MAF (that includes a temp sensor) as the inlet temp of -49 wont be helping things.
The main issue seems to be the vacuum system that actuates the turbo, if there are no vac leaks then I'd suspect the solenoid valve.
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'75 ST Dax - 120 powered - x 127
Re: 'HDi's for Dummies' diagrams?
the temp sensor i cleaned with cleaner as per a MAF
the MAF is new, i may try the old one again just in case
the pressure sensor i'm assuming is the one that is a small short stub with a hole in it next to the Temp one?
i've tried to eyeball the vac pipes as much as possible, nothing obvious stands out
the MAF is new, i may try the old one again just in case
the pressure sensor i'm assuming is the one that is a small short stub with a hole in it next to the Temp one?
i've tried to eyeball the vac pipes as much as possible, nothing obvious stands out
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
- EDC5
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Re: 'HDi's for Dummies' diagrams?
That's odd, there must be another reason for the erroneous freezing cold temp reading then.
Yes, that's the one, its short stub sticks into the doser housing so it can sense the pressure. Is it blocked up perhaps?
If the piping is all ok, then there may be a physical reason why the vanes on the turbo won't move. I'd be tempted to try this 'easier' step first:
Yes, that's the one, its short stub sticks into the doser housing so it can sense the pressure. Is it blocked up perhaps?
If the piping is all ok, then there may be a physical reason why the vanes on the turbo won't move. I'd be tempted to try this 'easier' step first:
- old'uns
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'75 ST Dax - 120 powered - x 127
Re: 'HDi's for Dummies' diagrams?
the reality is at the moment it was bought as a cheap runaround
so as it stands it has little value to anyone else and i dont particularly want to PX and spend an half decent amount out, so in for a penny....
MAP sensor and Intake temperature sensor ordered for collection Tuesday, ECP £48 with their currrent discount, eBay etc was at least £55+ and no guarantee of delivery dates, at least on Tue evening i can simply unplug / unscrew and try.
i'll look at that video later, if time on Tue i'll try that as well.
IF i get to Turbo replacement territory i may regret the 2nd sentence
so as it stands it has little value to anyone else and i dont particularly want to PX and spend an half decent amount out, so in for a penny....
MAP sensor and Intake temperature sensor ordered for collection Tuesday, ECP £48 with their currrent discount, eBay etc was at least £55+ and no guarantee of delivery dates, at least on Tue evening i can simply unplug / unscrew and try.
i'll look at that video later, if time on Tue i'll try that as well.
IF i get to Turbo replacement territory i may regret the 2nd sentence
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Re: 'HDi's for Dummies' diagrams?
I don't think there's anything wrong with the MAF.
Cleaning the doser press sensors is worth doing.
Check the turbo is getting proper vacuum (if you haven't done so). If you can reach the turbo actuator rod, push it in and release, it should return under firm spring pressure. Have someone start the engine and you should see it get pulled into the diaphragm by about 12mm.
Cleaning the doser press sensors is worth doing.
Check the turbo is getting proper vacuum (if you haven't done so). If you can reach the turbo actuator rod, push it in and release, it should return under firm spring pressure. Have someone start the engine and you should see it get pulled into the diaphragm by about 12mm.
Re: 'HDi's for Dummies' diagrams?
If you rev the vehicle when stationary does the rubber turbo pipe from inter cooler expand . If so turbo working . Simple test to try. I would be taking EGR valve off and checking. Egr valve will cause many of the faults listed. They are not as difficult to change as appears.
- old'uns
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'09 X7 - gone
CMax - X7 replacement - gone
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'06 C5 VTR auto est
'90 Honda Beat
'73 ST70 Dax
'75 ST Dax - 120 powered - x 127
Re: 'HDi's for Dummies' diagrams?
x fingers i can get something done tomorrow evening, plenty to go at thanks all.
strangely enough today and tomorrow, working at a well known engine specialists in Northampton, some blokes called Costin and Duckworth started it 60 yrs ago although i fear even they may not be able to help me, too low tech i think
strangely enough today and tomorrow, working at a well known engine specialists in Northampton, some blokes called Costin and Duckworth started it 60 yrs ago although i fear even they may not be able to help me, too low tech i think
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Re: 'HDi's for Dummies' diagrams?
You can test the whole vacuum system with a low-tech vacuum kit.
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Re: 'HDi's for Dummies' diagrams?
Sadly no longer with us unless you can communicate by Ouija board.
A couple of great engineers. Thanks for the reminder.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
- old'uns
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'06 C5 VTR auto est
'90 Honda Beat
'73 ST70 Dax
'75 ST Dax - 120 powered - x 127
Re: 'HDi's for Dummies' diagrams?
Mike Costin is still about, sure someone mentioned he was 89?, apparently going in on Thursday for a look around and to sign the frosted door panels that bear his name
currently '06 C5 2.0 HDi auto estate Tip run and France trekker - well should be!! occupied currently by '10 Superb DSG 170 elegance- whistles and bells that work
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Re: 'HDi's for Dummies' diagrams?
Quite right. My addled brain was thinking of his brother Frank Costin (the cos in Marcos). Apologies.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson