Currently having a problem with the car staying on. I used to have a problem where the car would not start at all because of faults including hill start failure, esp failure, and failure and so on. We cleaned up all the known earths that were indicated on a different thread and the car seemed to be working fine. However when the car gets up to temperature, the car tells me excess radiator cooling temperature. We've tried removing then coolant sensor and plugging it back in but it comes up with the same fault. We cleared it from the ecu and seemed to be fine. Then again when it gets to temperature it cuts off. Anybody got any ideas?

Perhaps it's overheating?
Check it.
If not fit new sensor.

Does this happen at start up? people believe this to be a map sensor issue if so but could be your coolant temp sensor, the map has a temp sensor built in there also as far as my understanding goes but I'm a newbie like real new so don't take that for 100% gospel just giving my 2 pence, but only one way to tell is to get diag done, mine, that's still at fiat now after I bought it only a month ago has a dead ecu has a been dead since I bought it but that was the diagnosis for mine hope yous isn't so bad however i had real bad luck

All the best mate

The MAP manifold absolute pressure sensor may have a temperature sensor .this is for measuring inlet air temperature .
It has nothing to do with coolant temperature.

Tomabraham17 said:

Currently having a problem with the car staying on. I used to have a problem where the car would not start at all because of faults including hill start failure, esp failure, and failure and so on. We cleaned up all the known earths that were indicated on a different thread and the car seemed to be working fine. However when the car gets up to temperature, the car tells me excess radiator cooling temperature. We've tried removing then coolant sensor and plugging it back in but it comes up with the same fault. We cleared it from the ecu and seemed to be fine. Then again when it gets to temperature it cuts off. Anybody got any ideas?

Click to expand...

This is a well known error in the GP world.
I do not own a GP, so i am not to familiar with it, but from seeing it many times over the years i think it had something to do with either a shorcircuit or a failing alternator.
Please search the exact error you are getting, you will find numerous similar threads and how some have solved the problem..

Replaced battery and problem went away so far so good but won't hold my breath lol thanks for help guys

Hi All,

seems that this 'coolant temperature' warning pops-up in first line whenever a power/voltage problem arise. What is very confusing is that it also seems to be temperature related...

My humble analyse goes like this: the temperature sensor fitted on the engine is a simple NTC resistor which is inserted in a voltage divider inside the ECU. As its resistance varies (with temp), the voltage at the divider varies accordingly, but as the reference voltage is fluctuating (bad battery / alternator / grounding...), the result is not what would be expected by the ECU's internal map (may be out of limits) so it throws the un-welcome message ...

Does it make sense ??

BRs, Bernie

If someone here helped You fix -or better- understand your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)

The common issue where the message appears with no error code or limp home is resolved by a dealer software update and usually occurs when the car is first started or key is turned to MAR. It is exacerbated by battery and voltage issues.

If you get the message when the car has been driven and is up to temp it could actually be overheating despite the reading on the gauge. If you don't want to pay for multi ECU scan, download torque lite from Google play store and get a Bluetooth adapter from eBay. This will give you actual temp am will also allow you to read some error codes from ECU.

Cheers

Ben

I replaced the battery and all has been ok so i believe it must be something to do with voltage happened to me at every start up got bigger battery for it all seems ok

jackwhoo said:

The MAP manifold absolute pressure sensor may have a temperature sensor .this is for measuring inlet air temperature .
It has nothing to do with coolant temperature.

Click to expand...

Not exactly true Jack, the ECU take BOTH sensor in account to calculate the needed air/fuel ratio. There is a built-in strategy that sort of compensate a sensor that would become bad, this can be found in the Description section of eLearn...

BRs, Bernie

If someone here helped You fix -or better- understand your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)

Dave4677 said:

I replaced the battery and all has been ok so i believe it must be something to do with voltage happened to me at every start up got bigger battery for it all seems ok

Click to expand...

Hey. I’m having this issue with excess temp error. If you’re still on here, just wondered if the battery fix was a permanent one

I'm also having this very problem and it's driving me mad. Before I buy a new battery is there anymore FIXES for this fault.

I also have the headlights staying on (dip beam when the switch on the stalk is in the off position.

Thanks