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 Posted: Tue Feb 05, 2013 4:00 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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hi there all
i have bought a 2002 206 1.1
TUP1 HFX (merelli system) (multiplex)
i am in the mists of sorting out a few issus with the car
mainly Fan/sensor related
the car has at sometime had a bump in the front so someone has replaced the rad and fans and cowling with a non aircon set and wired the fans as if non aircon
like
fan supply from + to rad stat to fan to ground
but i want to put the car back to std meaning repairing the original 2 relay+ resistor system
which i have done!
my issue is
i have an issue when testing using Peugeot planet!
the dash clocks in peugeot planet shows the correct temperature say 14c
but
read the coolant temperature in the ecu and Planet reads 92c
when car is cold!
now if the car is run up to temp
dash clocks read correctly 14c up to running temp 92c
but
the ECU reads 92c down to 42c
if car is left idling the ecu logs a fault when the sensor switch cuts in
i have changed the sensor on top of the thermostat housing
part number (1338 A6) blue 3pin only two pins used.
there is a sensor switch below in the block a 1 pin blue and is open circuit until high temp is reached
questions are
is the ecu and dash clocks the same sensor?
have i got the right sensor?
or am i reading peugeot planet wrong?
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Posted: Tue Feb 05, 2013 4:24 pm |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Some of these cars use two coolant sensors don't they?
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Tue Feb 05, 2013 4:24 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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I believe that you should have three sensors as follows:-
A blue one for the gauge. As you look at the car it is on the RH side of the cylinder head fairly low down - that is why you think it is in the block. it isn't it is in the head. A bit hidden but you will find it.
A green one for the ecu. Fitted to the coolant outlet housing. (it seems you may have the wrong sensor fitted here.)
A brown or grey sensor for the fan close to and in front of the green one.
I am not so familiar with the AC model cars but worked on one many months ago and IIRC this is correct and does tie up with the description in Haynes manual of what and where.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Tue Feb 05, 2013 4:36 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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acording to autodata there is only the two as per the drawing which are linked direct to the ECU
and the dash is CAN linked to the fuseboard which is CAN linked to the ECU
peugeot planet sedre drawings are wrong for this car but autodata drawings trace out ok
im confused now
the blue sensor on the state housing is all original wiring no cut and shuts
so to is the blue 1 pin located in the head under the stat housing
all the plug colours match the sensor colours too
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Posted: Tue Feb 05, 2013 4:37 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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If I have it right this link is a fan sensor:-
www.ebay.co.uk/itm/206...1e7690c716
And this is the gauge sensor:-
www.ebay.co.uk/itm/Coo...35c0887f25
And not sure which but one of these is the ecu temp sensor:-
www.ebay.co.uk/itm/Coo...35bee09e58
www.ebay.co.uk/itm/Coo...35be286137
I firmly believe that ebay have the descriptions wrong. Also note that I don't think Eurocarparts will help; the last time I tried they listed about 6 different sensors for the same car. They are as confused as most other none genuine dealers.
You can check the temp sensors for gauge and ecu as follows:-
With the engine hot unplug the blue one and the temp gauge should go to zero.
With the engine hot unplug the green one and the engine revs should increase. This is because the ecu will think the engine is cold and increase the fuelling and throttle.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Tue Feb 05, 2013 4:40 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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OK we have been typing at the same time. I may be recalling the AC car incorrectly. I recommend you either find another AC car to compare or ask at your Peugeot main dealers parts department to look at the sensors. They are usually very helpful as they have a potential sale.
Personally the Peugeot main dealer parts staff here in Swindon have been the most helpful and polite main dealer I have used.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Tue Feb 05, 2013 4:41 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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You might have the wrong sensor fitted. There is a 3-pin and a 2-pin one is green the other is blue. Double-check on that.
The other sensor on the side of the block is just an overheat condition trip-switch at 120 C and makes the gauge jump to red etc.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Tue Feb 05, 2013 4:41 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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500 posts now makes me 5 stars. I wonder haw many have been useless?!
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Tue Feb 05, 2013 4:42 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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the blue on top of the stat
if i unplug this when car is hot idle increases and fans run also logs a fault in ecu sensor open circuit
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Posted: Tue Feb 05, 2013 4:47 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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picture taken from service box showing blue 3 pin sensor (item5)
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Posted: Tue Feb 05, 2013 4:50 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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I think someone MAY have bodged the wiring somewhere and possibly changed the thermostat housing to reduce the sensors to match the fan control system. Exactly what sensors do you have, what colours, how many pins and how many pins are used? Can you post pictures of them in their fitted positions?
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Tue Feb 05, 2013 4:53 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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| cully wrote: |
picture taken from service box showing blue 3 pin sensor (item5)
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OK, why do you say only 2 pins used then?
That's the 3-pin type pins 1&2 for ECU and pin 3&chassis for dash temp-gauge iirc.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Tue Feb 05, 2013 4:56 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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this engine is original
2002
TUP1 HFX (merelli system) (multiplex)
L4
sensors are
blue sensor 3pin only two pins used
blue sensor 1 pin
wired as this drawing direct to ecu via original loom no cuts no tape
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Posted: Tue Feb 05, 2013 4:59 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Tue Feb 05, 2013 5:00 pm |
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Joined: Feb 05, 2013
Posts: 19
Trade Rating: 0
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| V9977 wrote: |
That's the 3-pin type pins 1&2 for ECU and pin 3&chassis for dash temp-gauge iirc. |
yes i would agree with you if i were talking about a DW10 HDI
that uses all 3 wires
but this 206 only uses just the two
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