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Hi, I am moving this thread to this section because it might be more appropiated: I don't really have a problem this time with the Puma but I am curious about something I noticed with the PCV system of the 1.7 engine. When you pull out the oil cap while idling (engine cold or hot) you can...

No problem.

You should do this.

That is why it doesnt work when the ignition is on, because the coil of the relay receives positive in both pins.

The relay receives positive on pin 2 and when it has to be energized receives ground in pon 1 from the ecu

It should control the ground

But the switch that you installed controlls the ground or positive?

Yes, you have to check first on the K46 conector in the relay box with the relay out on pins 2 (this one specially) and pin 3 or pins 30 and 86 if there is positive when you turn the key on, there might not be numbers on the relay box but there should be on the relay itself.

The F28 feeds the PATS system too, which is the inmobilizer and also the fuel pump relay that is why the engine stops, so let me see if I got it right, taking out the F28 you can activate the fan with the switch no matter the key is on or not?

Sorry I meant first

F24 or F28?

I would check irst on the realy conector if you loose positive on pin 2 or 3.

These are the relays.

Hi, I have never done that in this car but looking at the wiring diagram that shouldn't be happening, it is pretty straightforward. Being the K46 the high speed relay and the K45 the low speed relay (I only have the spanish version) if you take out the K45 same thing happens? I assume that you...

There it goes, thank you.

Ok, I will see how I do then.

I got the video but it won't let me upload it, it says Invalid file extension. It is less than 10mb. It a MP4 file.

Hi, I don't really have a problem this time with the Puma but I am curious about something I noticed with the PCV system of the 1.7 engine. When you pull out the oil cap while idling (engine cold or hot) you can notice really big pulsations coming out from the head. I am a mechanich myself and I...

Hi, I would start checking the fuel pressure, it has a Schrader valve close to the first injector, it has to be between 2,5-2,9 bar without vacuum at the regulator (taking out the vacuum tube). In my case I had a problem between those revs too but it was more like a one big hesitate and it was...