pp2000 shows wrong engine temperature

[ipubudu]

I use pp2000 for my peugeot 406 2.0L 16v executive ( EW10J4 engine code)
and it shows 43 deg. Celsius while engine temperature meter on cluster shows 85 C -90 C.

Radiator cooling fan works perfectly and no over heating.

when i connect another scanner (Lauch) it also shows same reading as pp2000. It seems that ECU gets wrong engine temperature .
if so, will the engine run with open loop fuel regulating continuously?
will it cause to execs fuel burn?
i cannot imagine how to handle this case.

please help to solve this
your valued comments are highly appreciated.
thanks

[frog]

Maybe it is the oil temperature? My 406 2.0L 16v had an oil temp indicator on the instrument cluster.

I looked around but can't seem to find any details around where the oil temp sensor is located, or how it works in combination with the engine / injection management. Any-one else?

[GingerMagic]

Hi, the CTS ( Coolant Temperature Sensor ) can give false readings and lead to over fuelling etc.

Its not to expensive to buy one, about £10 from eBay ( not sure about a genuine Peugeot part though ) and it may fix your issue.

I'm not sure what else to suggest?

[steve_earwig]

From what I remember earlier cars use a separate temperature sensor for the engine management (all in one after they went full-mux). Diagram shows a black connector (I think the other is brown?) on the outlet tank (also contains thermostat).

Seems a bit vague but if you pull the connector the temperature on PP should drop to zero (rather than the one on the dash...)

[ipubudu]

hi,
Thanks for replies.
i brought the car to agents. with their analyzer ( PP2000 via Diagbox) shows correct temperature. ( it shows the value exactly same with the temp. meter on dash). they say that PP2000 we brought from outer market gives some wrong value in eng. tmp