No fire
check cold start injector relay and injector. are u sure that fuel pump is good? can u hear it come on when key is turn to on ? it should come on for about a second if yes check for fuel from injectors , pull one injector put from head point into glass jar remove rubber boot from air flow sensor assembly, pull fuel pump relay and install jumper so fuel pump contiously runs then using a magnet pull up on air flow sensor fuel should be coming out of injector in a cone shape.
I have a 1991 Jetta 1.6 Diesel. Starts really hard. Air bubbles in the return line. When I ran a line from the pump to a bucket of fuel it would barely lift the fuel above the pump. In the last week the engine sounds like the timing has changed and noticebly less power.
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