mazda 626 one spark
 

Hi all, I have a Mazda 626 year 2000 petrol manual. One day it was working fine now it's not. I checked fuel which is plenty and when it turns over you can smell fuel out of the exhaust. I tried easy start and it still doesn't work. I checked the spark plugs and found that I have one spark only at the plugs no matter how long it is turning. I then changed the coil pack but that made no difference. I removed the camshaft sensor and check resistance which was .750 between the two posts. I've checked the fuses and all seems fine. Camshaft are turning when cranked. I'm pretty sure it is the camshaft or crankshaft sensor but can anyone help on how to test these properly how much they cost and where to get them cheap. Or if you know of any fault it could be. If you wish email me at martin_tiny@hotmail.com.

are you getting any trouble codes? those two sensors usually trigger a trouble code when they fail.

No code. Resistance on camshaft sensor is 750 ohms

that sounds about good. the haynes manual says the crankshaft sensor should read from 950 ohms to 1.25 k ohms. did you check that the timing belt did not jump a couple or teeth? did you check compression, fuel pressure? first check that all timing marks are in place when at TDC.