My FC turns over but not giving spark

maui_boi · 09-08-2008, 02:06 PM

someone can help me plz my car turns over but there is no spark going to the spark plugs help me out plz o yea and its a 88 n/a

Whizbang · 09-08-2008, 02:07 PM

this is the same for both the leading and trailing?

did you check the fuse in the engine compartment?

maui_boi · 09-08-2008, 02:08 PM

yea for both not giving

yea and the fuses are good

i also just changed the spark plugs

Whizbang · 09-08-2008, 02:14 PM

hmm...well i would then assume that you have no signal too the coils. BUT i would check that as well. Just use a voltmeter and see if you are getting signal to the coils or not.

If not, i would then pursue what can affect cutting the ignition. Without my FSM stuff handy (at work) i dont want to speculate, but i have a similiar problem that is caused by a loose wire in the harness. Generally i just move the harness around and its fine for a few days. Not sure what it is, but it would lend me to believe there is a component that can kill the ignition signal.

does your tach work while cranking? ie does it bounce due to the starter cranking the engine?

maui_boi · 09-08-2008, 02:20 PM

no the tach dosent bounce

Whizbang · 09-08-2008, 02:22 PM

so you have NO tach movement at all then right?

maui_boi · 09-08-2008, 02:24 PM

nope but my cluster does work though

Whizbang · 09-08-2008, 02:25 PM

okay. i think we have a similiar issue going on, only your is more permanent.

let me look over some wiring diagrams tonight, ill get back to you tomorrow on this.

maui_boi · 09-08-2008, 02:28 PM

ok thanks

anyone else got suggestions???

maui_boi · 09-09-2008, 06:52 PM

any other suggestions??? also im hearing that there is a test mode or something like that how u do that????

Phoenix7 · 09-09-2008, 07:10 PM

I always throw in the "Check your main relay" advice.

Check your CAS (Crank Angle Sensor) and make sure everything is plugged in/perfect.

What have you done so far?

Check out this thread (READ IT ALL) and then check out the post about the TPS and ECU Code tester (post #7):
http://rotarycarclub.com/showthread.php?t=1790

This one also has a GREAT Article on the FC's Ignitions systems.

maui_boi · 09-09-2008, 07:19 PM

im thinking it could be the ignition because when i bought it the guy had put in a push start button and dosent turn with the key

Phoenix7 · 09-09-2008, 07:26 PM

why didn't you say that from the beginning then?

GO back and check his work and make sure ignition works.

You can even go ONE better and take a video, post it on youtube and show us.

Just add RotaryCarClub in the video description while you're at it.

maui_boi · 09-09-2008, 08:45 PM

my ignition works cause my main relay clicks

09-08-2008, 02:06 PM	#1
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	My FC turns over but not giving spark someone can help me plz my car turns over but there is no spark going to the spark plugs help me out plz o yea and its a 88 n/a

09-08-2008, 02:07 PM	#2
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	this is the same for both the leading and trailing? did you check the fuse in the engine compartment? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-08-2008, 02:14 PM	#4
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	hmm...well i would then assume that you have no signal too the coils. BUT i would check that as well. Just use a voltmeter and see if you are getting signal to the coils or not. If not, i would then pursue what can affect cutting the ignition. Without my FSM stuff handy (at work) i dont want to speculate, but i have a similiar problem that is caused by a loose wire in the harness. Generally i just move the harness around and its fine for a few days. Not sure what it is, but it would lend me to believe there is a component that can kill the ignition signal. does your tach work while cranking? ie does it bounce due to the starter cranking the engine? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-08-2008, 02:22 PM	#6
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	so you have NO tach movement at all then right? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-08-2008, 02:25 PM	#8
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	okay. i think we have a similiar issue going on, only your is more permanent. let me look over some wiring diagrams tonight, ill get back to you tomorrow on this. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-08-2008, 02:08 PM	#3
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	yea for both not giving yea and the fuses are good i also just changed the spark plugs

09-08-2008, 02:20 PM	#5
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	no the tach dosent bounce

09-08-2008, 02:24 PM	#7
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	nope but my cluster does work though

09-08-2008, 02:28 PM	#9
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	ok thanks anyone else got suggestions???

09-09-2008, 06:52 PM	#10
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	any other suggestions??? also im hearing that there is a test mode or something like that how u do that????

09-09-2008, 07:19 PM	#12
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	im thinking it could be the ignition because when i bought it the guy had put in a push start button and dosent turn with the key

09-09-2008, 08:45 PM	#14
maui_boi FC Rotary Power Join Date: Sep 2008 Location: MAUI, HAWAII Posts: 24 Rep Power: 0	my ignition works cause my main relay clicks