Starting problems

[Rhi]

How's it guys, recently had a over heating problem that caused my car mk4 2,0L not to start blew da head had it sorted out but refused to start after sorting it out and still face this problem but now my fans are spinning when I swing the car, thanks guys.


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[panic-mechanic]

Does not start at all?. Have you had it on VCDS - does it see RPM?.

[Rhi]

I had it on VCDS bt it picked up no faults


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[panic-mechanic]

you cannot look at faults alone. faults are logged if the engine is running. When it is not running you have to use it as a diagnostic tool. IE when you crank it can you see rpm in the single reading blocks. is it seeing the right water temp, is the immobiliser deactivated etc.
Then do some mechanical testing.
as repeated a million times
Engines need
1) compression
2) fuel
3 spark at the right time.
So does it spark.
does the fuel pump run and is there fuel at the injectors. It is easy to swop the supply and return line
is there compression and by that it includes Mechanical valve timing.