Munkul
Jack of some trades, Master of none
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Single cam FIRE doesn't have variable timing. In fact neither does the 16v. Only the 1.8 HGT had a variator on one of the cams.My same engine, probably same code too
188A4000 ,it should have a variable timing camshafts,those things make the engine much less reliable,it should work by an actuator on the valves cover which operates a valve on the oil line to the camshaft.
This pressurise the cam pulley advancing the opening of the valves to increase high rpm performance (useless on a city car on the Panda 169 chassis) .
How I know it does that because it's what's happening on my car and in fact it's perfect from 4k to 6000 RPMs but mine is because of the broken timing pulley on the crankshaft.
Practically does what we do on two strokes when we lift the exhaust port ,it opens before, higher exhaust pressure and way less torque.
At least I believe it's so .
I'm now curious and I'm going to check.
But I'm sure it's not a variable lift system because we work on lots of those heads at work