I am rebuilding 89 1.8 16V kr mk 2. I have rebuild the engine from ground up. New rings rebore reworked head etc etc. the problem is I went for its first fire up this week which it did after sorting the fuel pump. My problem now is it runs terrible and don't know what's wrong. It starts but struggles. Then it won't idle if you try revving it you get a high pitch squeel from somewhere. And it sort of revs then dies. It has new leads plugs and cap and rotor. Reworked everything. The fuel injectors are original and metering head original.