318is M42B18 won't accelerate(shooting)

[Martynass]

At first I want to say that my English is not very well, but I will try to explain my problem. So I have an E36 with m42b18 engine, the first engine that was in it had been burnt so i decided to change it, just bought fully working 1993 years engine from another car, all things like intake manifold, sensors, wiring, ecu is from my old engine I just puted the naked new one. Now I have a problem with it I start it try to rev the max rpm is 2000 and its starts shooting and didn't work if you don't always keep pushing acceleration pedal, its starts very easy, but didn't work. I didn't put hands on timing chain, just changed the crank pulley, so the ignition system is good. I did diagnosis with my computer it show error 16, which means bad camshaft sensor i changed it and it is the same, i checked the wiring, the resistance in the sensor everything is good, but I still get that fault and my engine dind't work well max rpm 2000 and shooting sound from exhaust. Maybe someone had the same problem and can help? Sorry for the mistakes.

[Eric93se]

Test your crank sensor. Also this could be a clogged exhaust, the catalytic converter may be clogged.

It is also possible that your new cam sensor is bad, this happens, I know you tested it but it's possible. Also Is the old engine the same year as the new one? Because there is a different sensor for different years, and your wiring harness would also have a different connector (I know you changed the computer) but the sensors and connector could be different.

[Martynass]

Crank sensor is good I tested it, I tested all sensors. All sensors, wiring, ecu and other stuff is from my old engine

[ilikemycar]

If your RPM limit is 2000rpm it sounds like your car is in "Limp mode" .. I'd backtrack and check if all connections are plugged in correctly. Maybe you plugged something wrong, so now computer is confused.

[Martynass]

I have one more question maybe someone know, the computer diagnosis say that the problem is camshaft sensor. I was trying to unplug it and start engine, nothing changed, I tried another sensor from fully working car and nothing. So I decided to measure voltage to the crankshaft sensor, it had 4,6V, but camshaft sensor have only about 0,02V, I had checked the wires from sensor connector to ECU everything was fine, and also I tried to swap ECU I was thinking maybe it is ECU fault, but nothing changed. Maybe you guys have any ideas about what?

[Eric93se]

You have to measure the resistance of the wire from the DME to the cam sensor and do it for both wires. Not uncommon for bad wires.

[Martynass]

I have checked wires from the DME to the cam sensor with that beeping sound on multmeter, and it was OK.