no spark - Toyota Nation Forum : Toyota Car and Truck Forums

David0Lt · 12-12-2009, 07:43 PM

i recently took the cams off my 04 matrix. i was going to take the head off to replace the rob bearings but i found out half way through that i didnt need to take the head off. anyways i put it all back together and now there is no spark. it turns over, gets fuel and everything but not spark. anyone have an idea on whats wrong?

***mistamatrix*** · 12-12-2009, 10:32 PM

Well since you took all that shit apart, tough for anyone to say other than go back and double/triple check everything. Good luck!

David0Lt · 12-12-2009, 10:43 PM

maybe i sould rephrase my question. what wires will directly effect the coil packs to not get power. i already rechecked the harness. and i tried a different ground point. so it has to be + power related.

fishexpo101 · 12-14-2009, 12:20 PM

Have you visually verified for spark (i.e., pulled plug and igniter, ground the plug and see if any spark jumps as you crank the engine)?

If no spark at all, verify the same on all cylinders, give the car some time to evaporate the fuel or pull EFI fuse to prevent fuel loading the cylinders. It is possible that either no power is getting to the coils, the ECM signal is not getting to the them, or the camshaft position sensor is disconnected or damaged.

David0Lt · 12-14-2009, 06:51 PM

Quote:

Originally Posted by fishexpo101

Have you visually verified for spark (i.e., pulled plug and igniter, ground the plug and see if any spark jumps as you crank the engine)?

If no spark at all, verify the same on all cylinders, give the car some time to evaporate the fuel or pull EFI fuse to prevent fuel loading the cylinders. It is possible that either no power is getting to the coils, the ECM signal is not getting to the them, or the camshaft position sensor is disconnected or damaged.

yea i pulled the spark plugs on 3 of them and grounded them. i even rechecked the stock grounds and grounded it to a different area. i know its pulling fuel because u can tell.

it seems like there is no power getting to it at all. the camshaft posistioning sensor is at the back of the head right? the one that almost touches the intake cam. if so yes its plugged in. i think im just going to take it to toyota to fix