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-   -   no spark (http://www.focusfanatics.com/forum/showthread.php?t=308409)

dragford 02-04-2013 08:55 PM

no spark
 
OK - 2003 SPI. Replaced engine with rebuilt model. Everything hooked up. Engine cranks, but will not fire. Not cranking slowly, normal. No spark from spark plug when removed and held close to manifold while cranking. Little bit crazy cuz it was running in another car. Is there ground strap other than the one that goes to the one bolt on the starter/block/bellhousing? Not sure where to start. Everything was working in other car. Can hear the fuel pump pressurize when key is turned on. What do I do?

duc450 02-04-2013 09:57 PM

Did you check the plug going into the coil and check the coil as well? Also not 100% sure on this but thought I remembered the crank shaft position sensor could be responsible for spark output and not just timing as well, depending on control module.

dragford 02-05-2013 03:14 PM

hmmmm
 
wondered about that. I had to splice the crankshaft position sensor wiring into the harness. the plug in the middle that joined the wire(s) to the harness was broken so I simply wired the wires together in one of those crimp connectors.

freemind 02-05-2013 05:15 PM

Solder it ASAP

dragford 02-05-2013 06:11 PM

well
 
Well i worked on it again and worked on those wires again. Nothing. So i had my son turn the key as I looked. The lower damper/pulley seems to be bent and/or on crooked, as it has a little back and forth motion as it turns. Could this small irregular movement be sending a bad signal to the cps which causes no spark? I dont know how/why it may be bent, but it seems to be moving fore/aft a little as it turns.

dragford 02-06-2013 07:22 PM

way
 
is there a way to check if the cps is functional?

duc450 02-07-2013 02:01 PM

Do you have any OBDII diagnostic scanners? If you have a descent one you should be able to read the crank sensot signal.


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