stkinge

Alright heres my problem. I have a z6 i just swapped into my 99 civic. When i timed it using a timing light i noticed that the timing mark moved when i accelerated. Is this normal? Also it is at this moment when the timing moves that the engine misfires? WTF?

Former User

It's normal for the ignition timing to advance with acceleration.

With the engine idling at spec and the service connector jumped, is the pointer aligning with the red mark (middle in group of three marks)?

stkinge

Yeah it does line up. Why would it misfire though? Aslo anybody running an obd1 engine into obd2b car. What ecu did u use?

Former User

Is the CEL ON?

What's the condition of the plugs, wires, cap, and rotor?

Are all of the fuel injectors clicking?

Is it running with an OBDI ECU?

stkinge

Yeah the cel is on but it is for the iacv. The plugs are new so is the distributor. the injectors are clicking. one is leaking gas . Would that cause a problem? Its leaking because the o ring is worn. im changing them soon.

Former User

Fix the leaking injector and then go from there. It may be the problem.

Are the plug wires also new?

Have you checked for CEL codes since the problem started? A new code could be pulled from the ECU.

stkinge

Im going to fix the injector right now. Yes the plug wires are also new. And no i havnt checked for new codes. i will as soon as possible.

stkinge

Fixed the injector. same thing happened. I put the timing light on the seven o clock mark and it is off. ( Seven oclock mark on the cam) Im going to take the timing belt off again and redu. Any tips on aligning things?

Former User

Is your mechanical timing off if you inspect it this way (lower diagram):

stkinge

On the crankshaft pulley there are two tdc marks. Wich one do i use?

Former User

The crankshaft pulley should have one lone white mark separated from a group of three marks (the middle one is red). TDC1 is when the lone white mark is aligned with the pointer.

stkinge

Yes i understand this is correct for other engines. However it seems that the z6 has two tdc marks it looks like this l l l______l l

Former User

You may need to take off the crank pulley to set/check the timing. What mark is the pointer aligned with when the cam is at TDC1?