just completed my gen3 swap and i have no spark or 12v at the coil?

tzr250rg · 09-28-2009, 03:40 PM

i just finished my swap from a 91 turbo to a JDM 94+ gen 3 engine.
everything looks good except i have no power(12v) at the coil.
i'm getting 5volts across the black-red and black on the igniter

However i am getting 12v at the Ignition relay black-orange
i also get 12v on the black-orange when the ignition is in the on position.

any help?

mr2_kevin · 10-06-2009, 09:13 PM

are you using the 91t body harness or 3rd gen?

mr2_kevin · 10-07-2009, 06:05 PM

Quote:

Originally Posted by tzr250rg

i just finished my swap from a 91 turbo to a JDM 94+ gen 3 engine.
everything looks good except i have no power(12v) at the coil.
i'm getting 5volts across the black-red and black on the igniter

However i am getting 12v at the Ignition relay black-orange
i also get 12v on the black-orange when the ignition is in the on position.

any help?

did you do wiring in the fuse box too? i did the same thing as you but my ecu came from the 3rd gen mr2 though

jazzcornet · 10-07-2009, 09:33 PM

i'm willing to bet you arent using a 3rd gen ignitor (same as 5sfe)....

HarrisRacing · 10-13-2009, 09:19 AM

My engine came with the ignitor, but did not come with the fuel injector resistor. The plugs were different between 2nd gen and 3rd, but the funtion inputs and outputs were the same - so I just found the appropriate wires and wired it in with the 2nd gen plugs. This may be the case with the ignitor as well if you don't have the 3rd gen ignitor!? I suspect it has something to do with that as well.

Patrick

tzr250rg · 10-17-2009, 12:29 AM

thanks for the help guys!. The problem was in the fuse box. had to move a couple of wires that did not match up between the engine and body harness.
once i get a chance i'll write which wires in the harness.

mr2_kevin · 10-18-2009, 04:31 PM

Quote:

Originally Posted by tzr250rg

thanks for the help guys!. The problem was in the fuse box. had to move a couple of wires that did not match up between the engine and body harness.
once i get a chance i'll write which wires in the harness.

i did the same... i called ats racing and they was very helpful in helping me.

tdj_1992 · 11-16-2009, 09:28 PM

Quote:

Originally Posted by jazzcornet

i'm willing to bet you arent using a 3rd gen ignitor (same as 5sfe)....

so are you saying the 3rd gen ignitor and the 5sfe one is the same???

CJMR2T · 11-16-2009, 10:06 PM

Yeah they are the same, which also happens to be the same as the ones used on the pre 98 (non VVTi) 1UZ-FE V8 engines....

Actually, if you rewire the plug, you can use just about any toyota ignitor. Most all toyota ignitors used in the mid 80's through the mid 95's have the same 5 basic connectoin and operate the same. Those 5 connections are +12v, coil negitive, IGt, IGf and Tach....

As long as you wire those 5 signals correctly, most of them will work.... Actually, you only need 4 of them. You dont need the Tach lead unless you have a tach...

09-28-2009, 03:40 PM	#1 (permalink)
tzr250rg No Skills Join Date: Dec 2005 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	just completed my gen3 swap and i have no spark or 12v at the coil? i just finished my swap from a 91 turbo to a JDM 94+ gen 3 engine. everything looks good except i have no power(12v) at the coil. i'm getting 5volts across the black-red and black on the igniter However i am getting 12v at the Ignition relay black-orange i also get 12v on the black-orange when the ignition is in the on position. any help?

10-13-2009, 09:19 AM	#5 (permalink)
HarrisRacing Cage Fighter Join Date: Jun 2007 Location: Lafayette, La Posts: 162 Thanks: 11 Thanked 15 Times in 7 Posts My Google Map iTrader Rating: (0/0% )	More... My engine came with the ignitor, but did not come with the fuel injector resistor. The plugs were different between 2nd gen and 3rd, but the funtion inputs and outputs were the same - so I just found the appropriate wires and wired it in with the 2nd gen plugs. This may be the case with the ignitor as well if you don't have the 3rd gen ignitor!? I suspect it has something to do with that as well. Patrick

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

10-06-2009, 09:13 PM	#2 (permalink)
mr2_kevin Some Skills Join Date: Jul 2009 Posts: 95 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (1/100% )	are you using the 91t body harness or 3rd gen?

10-07-2009, 09:33 PM	#4 (permalink)
jazzcornet Gi_Shu_Som Powdercoating Join Date: Nov 2006 Location: newport news, va Posts: 1,683 Thanks: 19 Thanked 60 Times in 50 Posts My Google Map iTrader Rating: (15/100% )	i'm willing to bet you arent using a 3rd gen ignitor (same as 5sfe)....

10-17-2009, 12:29 AM	#6 (permalink)
tzr250rg No Skills Join Date: Dec 2005 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	thanks for the help guys!. The problem was in the fuse box. had to move a couple of wires that did not match up between the engine and body harness. once i get a chance i'll write which wires in the harness.

11-16-2009, 10:06 PM	#9 (permalink)
CJMR2T Fabricator Join Date: Oct 2009 Location: Florida Posts: 123 Thanks: 1 Thanked 7 Times in 6 Posts iTrader Rating: (0/0% )	Yeah they are the same, which also happens to be the same as the ones used on the pre 98 (non VVTi) 1UZ-FE V8 engines.... Actually, if you rewire the plug, you can use just about any toyota ignitor. Most all toyota ignitors used in the mid 80's through the mid 95's have the same 5 basic connectoin and operate the same. Those 5 connections are +12v, coil negitive, IGt, IGf and Tach.... As long as you wire those 5 signals correctly, most of them will work.... Actually, you only need 4 of them. You dont need the Tach lead unless you have a tach...