no spark out of ideas.

BrunoD · 03-31-2009, 04:26 AM

thats a great idea. except for the fact it doesnt have a distributor. but i did try the spark plug thing. was still in my mouth. still no spark. and there is power going to all 3 of the coils.

Vacationtime247 · 03-31-2009, 07:59 AM

The coils should get a signal from the computer telling them when to fire. Have you checked for signal when the engine is turning over?
VT247

BrunoD · 04-02-2009, 01:33 AM

yea i checked it. im not getting anything. what i did was pulled off the 2 pin connector found my batt voltage then put my dvom lead into the other connector cranked it over and nothing.

Vacationtime247 · 04-02-2009, 03:41 AM

What sensor tells the computer when to give the coils a signal on the motor you have installed? Is it a cam position sensor? A Crank sensor? Check for proper voltage out at that location with the engine turning over. Another thought is to make sure you have all your grounds. Computers and sensors don't act right without a good ground.
VT247

BrunoD · 04-02-2009, 05:32 PM

ive checked all the grounds over and over. everything seems to be fine. im going to run another wire from the coilpack mounting plate straight to the battery and see if that does anything. and as for the sensor i belive its run off teh camshaft sensor.

Vacationtime247 · 04-03-2009, 04:01 AM

Again, check for signal coming out and going in to the cam sensor. If the cam sensor isn't sending a signal out (or getting proper voltage in), the computer can't send a signal to the coil. Also, have you checked the mass air flow sensor on the intake duct? A previous Supra I had wouldn't run without it being installed. It didn't run that great with it on either, so I sold it. Bought it at auction (not running) for $50. Sold it on eBay (running) for $600. Sure it was ragged out, but what did I care, I made some money and moved on to the next car. Might be that your engine has a MAP sensor, I don't know. But a few more things to think about checking. Is the knock sensor plugged in (if it has one)?
VT247

BrunoD · 04-04-2009, 05:00 AM

what side of the engine would the knock sensors usually be on? drivers or passenger? ive got voltage going to the cps so i just need to isolate the signal wire from that and see if im getting voltage from that. i read somewhere else that a tps sensor would cause something like that so im gonna take a look at that too. heres the thing though. if a afm would cause no spark. maybe ive got the wrong one. jdm engine depot is where i got my swap. they forgot to send the afm with it so i had to call them up and they sent it out. but heres the thing. its really hard to get into the accordian hose to the turbo. and i mean like really hard. its just a little too big but i made it fit. any ideas?

04-02-2009, 03:41 AM	#4
Vacationtime247 3" Exhaust Join Date: Feb 2009 Location: Muncie, IN Posts: 86	Hope I'm helping..... What sensor tells the computer when to give the coils a signal on the motor you have installed? Is it a cam position sensor? A Crank sensor? Check for proper voltage out at that location with the engine turning over. Another thought is to make sure you have all your grounds. Computers and sensors don't act right without a good ground. VT247

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03-31-2009, 04:26 AM	#1
BrunoD Stock Join Date: Mar 2009 Location: minnesota Posts: 7	thats a great idea. except for the fact it doesnt have a distributor. but i did try the spark plug thing. was still in my mouth. still no spark. and there is power going to all 3 of the coils.

03-31-2009, 07:59 AM	#2
Vacationtime247 3" Exhaust Join Date: Feb 2009 Location: Muncie, IN Posts: 86	The coils should get a signal from the computer telling them when to fire. Have you checked for signal when the engine is turning over? VT247

04-02-2009, 01:33 AM	#3
BrunoD Stock Join Date: Mar 2009 Location: minnesota Posts: 7	yea i checked it. im not getting anything. what i did was pulled off the 2 pin connector found my batt voltage then put my dvom lead into the other connector cranked it over and nothing.

04-02-2009, 05:32 PM	#5
BrunoD Stock Join Date: Mar 2009 Location: minnesota Posts: 7	ive checked all the grounds over and over. everything seems to be fine. im going to run another wire from the coilpack mounting plate straight to the battery and see if that does anything. and as for the sensor i belive its run off teh camshaft sensor.

04-03-2009, 04:01 AM	#6
Vacationtime247 3" Exhaust Join Date: Feb 2009 Location: Muncie, IN Posts: 86	Again, check for signal coming out and going in to the cam sensor. If the cam sensor isn't sending a signal out (or getting proper voltage in), the computer can't send a signal to the coil. Also, have you checked the mass air flow sensor on the intake duct? A previous Supra I had wouldn't run without it being installed. It didn't run that great with it on either, so I sold it. Bought it at auction (not running) for $50. Sold it on eBay (running) for $600. Sure it was ragged out, but what did I care, I made some money and moved on to the next car. Might be that your engine has a MAP sensor, I don't know. But a few more things to think about checking. Is the knock sensor plugged in (if it has one)? VT247

04-04-2009, 05:00 AM	#7
BrunoD Stock Join Date: Mar 2009 Location: minnesota Posts: 7	what side of the engine would the knock sensors usually be on? drivers or passenger? ive got voltage going to the cps so i just need to isolate the signal wire from that and see if im getting voltage from that. i read somewhere else that a tps sensor would cause something like that so im gonna take a look at that too. heres the thing though. if a afm would cause no spark. maybe ive got the wrong one. jdm engine depot is where i got my swap. they forgot to send the afm with it so i had to call them up and they sent it out. but heres the thing. its really hard to get into the accordian hose to the turbo. and i mean like really hard. its just a little too big but i made it fit. any ideas?