Well as it was cold today i thought i would do some investigating.
Now firstly im no electrical genius, so please any mistakes i make pull me up on it! Its just my own findings.
As posted before me and spaniel both seem to be plagued with this weird start up issue, to explain when i come to fire my car up in a morning, for the first 30-60 seconds, it runs really ruff, very much like a misfire, and smells really strongly of fuel. There after it runs fine, no problems at all.
I am 99% sure the problem is the blue temp sender.
The sensor works off simple readings, for example, cold the sensor should read about 3 - 4 ohms, this tells the car that its cold so it over fuels, as soon as it gets running the heat rises, the readings drop, and the car stops over fueling...
So my thoughts before my investigation was that the sensor just has a bad starting reading.
So i got 5 sensors:
A. Old Used Sensor
B. Old Used Sensor
C. Old Used Sensor
D. New Sensor
A. New Sensor GSF
Here is a graph to show the readings
The starting reading was the sensors, all stored in the same temperature outside for 4 hours (cold).
Now straight away my guess, was correct, the variation in cold readings was, what i think quite major.
4.30 / 3.68 / 4.08 / 5.40 / 3.00
out of those readings, the 2nd reading would be more suited to fixing my problem, as it is the lowest.
the 2nd reading (time reading) is sat submerged in the water (500ml) in a pan, each time, it was new cold water, and cold pan.
again these readings were quite varied, especially between the old sensors.
there after, the graph shows the readings, each time on boil, at 8 is boiling point, and then the 4 readings after were cooling down in the water, just to make sure
Now the actual flow of each reading i thought was pritty similar, but what worried me was the reading of the GSF sensor, its starting temperature was low and it continued, all the rest seem to stop around 0.20 at boiling, but the gsf one, is so low, so im guessing it will cause really bad underfueling when running?
So thats pritty much it, basically blue temp sensors seem to vary alot in initial start up temperature, which would explain the dicky start up, ive had it with a few G40's
Thats about it really, im going to try sensor B on my car as i think that is more suited to the car, i will update how it goes