the start of the B.customs Z has begun..2jz 1000hp - Page 14

ShaggyZ · September 24th, 2009, 09:15 PM

Check it anyway. I've messed with some L28's that idled fantastic - or so it seemed - and then I found out the plug wires were incorrectly connected.

ARZ_ · September 24th, 2009, 10:19 PM

Quote:

Originally Posted by mike321go

i dont think so...when its warm it idols extremely smooth with no hicups or anything.

Don't "think so." KNOW SO!!! Check don't guess.

Quote:

Originally Posted by ShaggyZ

Check it anyway. I've messed with some L28's that idled fantastic - or so it seemed - and then I found out the plug wires were incorrectly connected.

I agree 100% that's why I mentioned it. When idling, an inline 6 has an amazing capacity for improper spark timing. You would be very surprised at how smooth your L motor idles if you swap 2 and 4. Don't believe me, TRY IT!

PLUS!!! you did not answer my question.

Did you do WOT in the video or were you easing into the throttle?

1. Dont answer all the questions.
2. Dont bother checking (for sure) the problems that people that have already done what you are doing.
3. Give extremely short responses, with no conclusion.
4. And make sure "all involved" know your not going to check that "cause you already did that when you installed it."

This is the quickest way NOT to get help.

mike321go · September 26th, 2009, 12:29 PM

In order to wire the coils backwards i would have to cut up my wiring harness and move the plugs around. the wiring harness on a 2jz is form fitted to the coils so plugging them in wrong is virtually impossible. As for the WOT question...no i was not WOT i was about 15% throttle.

Quote:

Originally Posted by ARZ_

Don't "think so." KNOW SO!!! Check don't guess.

I agree 100% that's why I mentioned it. When idling, an inline 6 has an amazing capacity for improper spark timing. You would be very surprised at how smooth your L motor idles if you swap 2 and 4. Don't believe me, TRY IT!

PLUS!!! you did not answer my question.

Did you do WOT in the video or were you easing into the throttle?

1. Dont answer all the questions.
2. Dont bother checking (for sure) the problems that people that have already done what you are doing.
3. Give extremely short responses, with no conclusion.
4. And make sure "all involved" know your not going to check that "cause you already did that when you installed it."

This is the quickest way NOT to get help.

stony · September 26th, 2009, 01:46 PM

There should be an area in the computer that you set your firing order that's what I think we are talking about. If you know it's right then not sure what to tell you

garvice · September 26th, 2009, 04:24 PM

Can the AEM test outputs?
I can test all my Motecs outputs. I.E. I can tell which cylinder is firing/injecting without starting the car. Very good for double checking your wiring before you fire the car up for the first time.

You also said that you couldn't have wired it wrong because the loom is fitted to the coils, but didn't you splice in an AEM Loom? Couldn't you have spliced the wrong cylinder wires in?

If your computer doesn't support the testing of outputs, then remove your crank angle sensor (or get a second one) and spin it by hand while watching the spark plugs fire.

garvice · September 26th, 2009, 04:55 PM

Or do a continuity test from ECU output plug to coil plug to determine which output is which.

mike321go · September 27th, 2009, 03:11 PM

the aem system is plug and play so the only things i had to splice in were a map sensor and a air temp sensor

Scottie-GNZ · September 27th, 2009, 08:18 PM

What crank sensor are you using? I tried using the OEM crank sensor with TEC II and it failed miserably with similar symptoms. If you are not using the OEM setup, make sure the air gap is correct for the diameter of the trigger wheel. Since you are having RPM-related issues, that is where I would put the focus.

garvice is on the right track but I would go one step further and have someone put a scope on the crank sensor circuit.

mike321go · September 27th, 2009, 10:27 PM

there is another option then an oem crank sensor? all my sensors are stock with stock wiring harness..... Ya i think a scope is a good idea..at this point i have to bring it to a seriously skilled mechanic any suggestions around here??? im just north of san Francisco california.

Scottie-GNZ · September 28th, 2009, 11:28 AM

Not familiar enough with the AEM to tell you. The TEC II comes with a magnetic pickup that can be used with various diameter trigger wheels. Electromotive advertised a mod that could be done to the OEM trigger wheel to use the OEM pickup but it did not work. Engine would fire up and idle fine but break up badly as RPMs increased. Went to a 7" external trigger wheel and ran fine. You could have a bad OEM pickup and trying another should be easy.

I would go to supraforums and see who has a great rep for working with AEM, contact that person offline, and see if they can help. Start off by offering to pay for the service and see where it goes from there. You do not want to get into an open forum technical discussion there like you can do here.

Vette Powered · September 28th, 2009, 08:21 PM

I have a SC300 with a AEM standalone setup. I'm a long ways from you but I know the guys a Boost Logic. They built my SC. Anyway, if you would like to call them and talk a bit they will be a huge help. They are very well known and advertise on the Supra/Lexus Forums. Let them know you talked to Tad and I said they might be helpful. Just tell them I have the white Lexus.

http://www.boostlogic.com/

garvice · September 28th, 2009, 08:59 PM

Do you still have the factory computer?
Could you plug that in and see if it still revs (I know your engine is a lot different then stock, but it should still rev past 2500rpm with the factory one). That will eliminate the computer or sensors.

stony · September 28th, 2009, 09:02 PM

Not with 1000cc injectors installed.

garvice · September 28th, 2009, 09:07 PM

Good point, I retract my previous statement.

mike321go · September 29th, 2009, 09:04 AM

today hopefully im going to try a buddys supra aem box and see what happons

Meph · September 30th, 2009, 08:03 AM

Im running a 1jz on the stock 12 tooth trigger wheel with my Haltech system and it seems to be working fine, so I think it would all be fine. Try a second ecu, thats how i cured my 2 month no-start issue

mike321go · September 30th, 2009, 10:21 AM

Yesterday i was able to barrow a friend of mines supra aem ems. Plugged it into my car..did not change anything...and it revved to over 3500 rpms then started limiting...so at this point im almost positive its just tuning!!!!!!!!

mike321go · September 30th, 2009, 10:22 AM

stony · September 30th, 2009, 05:11 PM

Christ go pay 300 bux and get it on a dyno!!!! and be done with it.

mike321go · October 1st, 2009, 09:21 AM

LOL STONY..... out here 300 bucks is prob 3 hours of dyno time and then you have to pay the tuner 100 bucks an hour on top of that

September 24th, 2009, 09:15 PM	#261
ShaggyZ Terminator Join Date: Sep 2006 Location: Austin, TX Posts: 521	Check it anyway. I've messed with some L28's that idled fantastic - or so it seemed - and then I found out the plug wires were incorrectly connected. __________________ '77 280Z 2JZ-GTE in Progresso '03 SV650S

September 26th, 2009, 01:46 PM	#264
stony RB Moderator Join Date: Oct 2000 Location: Syracuse Utah Posts: 3,350	There should be an area in the computer that you set your firing order that's what I think we are talking about. If you know it's right then not sure what to tell you __________________ Unnatural Aspiration....turbo lag was invented to give V-8s a chance RB26DETT, T88-34D, 30 PSI, full tune JUN head, 280 Cams W/ 10.30 lift, 1.2mm cometic Metal head gasket, custom intercooler, HKS Fcon V Pro engine management, 2 speed powerglide, Fully built Dana rearend, Ladder bar suspension, Best 1/4 to date 9.10 @ 147mph 4 link car in the chassis shop now more updates soon http://smg.photobucket.com/albums/v2...ompilation.flv

September 27th, 2009, 03:11 PM	#267
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	the aem system is plug and play so the only things i had to splice in were a map sensor and a air temp sensor __________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

September 27th, 2009, 08:18 PM	#268
Scottie-GNZ HybridZ Supporter Join Date: Apr 2000 Location: Orlando, FL, USA Posts: 2,552	What crank sensor are you using? I tried using the OEM crank sensor with TEC II and it failed miserably with similar symptoms. If you are not using the OEM setup, make sure the air gap is correct for the diameter of the trigger wheel. Since you are having RPM-related issues, that is where I would put the focus. garvice is on the right track but I would go one step further and have someone put a scope on the crank sensor circuit. __________________ Scottie '87 RX7 / 2JZ Power - 9.51 @ 146.16 71 240Z / GN-powered '84 911 Carrera Cabriolet '97 E36 M3 Coupe/5-spd '98 Sonoma Stepside - LM4 powered

September 27th, 2009, 10:27 PM	#269
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	there is another option then an oem crank sensor? all my sensors are stock with stock wiring harness..... Ya i think a scope is a good idea..at this point i have to bring it to a seriously skilled mechanic any suggestions around here??? im just north of san Francisco california. __________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

September 26th, 2009, 04:24 PM	#265
garvice HybridZ Supporter Join Date: Jul 2006 Location: Australia Posts: 528	Can the AEM test outputs? I can test all my Motecs outputs. I.E. I can tell which cylinder is firing/injecting without starting the car. Very good for double checking your wiring before you fire the car up for the first time. You also said that you couldn't have wired it wrong because the loom is fitted to the coils, but didn't you splice in an AEM Loom? Couldn't you have spliced the wrong cylinder wires in? If your computer doesn't support the testing of outputs, then remove your crank angle sensor (or get a second one) and spin it by hand while watching the spark plugs fire.

September 26th, 2009, 04:55 PM	#266
garvice HybridZ Supporter Join Date: Jul 2006 Location: Australia Posts: 528	Or do a continuity test from ECU output plug to coil plug to determine which output is which.

September 28th, 2009, 11:28 AM	#270
Scottie-GNZ HybridZ Supporter Join Date: Apr 2000 Location: Orlando, FL, USA Posts: 2,552	Not familiar enough with the AEM to tell you. The TEC II comes with a magnetic pickup that can be used with various diameter trigger wheels. Electromotive advertised a mod that could be done to the OEM trigger wheel to use the OEM pickup but it did not work. Engine would fire up and idle fine but break up badly as RPMs increased. Went to a 7" external trigger wheel and ran fine. You could have a bad OEM pickup and trying another should be easy. I would go to supraforums and see who has a great rep for working with AEM, contact that person offline, and see if they can help. Start off by offering to pay for the service and see where it goes from there. You do not want to get into an open forum technical discussion there like you can do here. __________________ Scottie '87 RX7 / 2JZ Power - 9.51 @ 146.16 71 240Z / GN-powered '84 911 Carrera Cabriolet '97 E36 M3 Coupe/5-spd '98 Sonoma Stepside - LM4 powered

September 28th, 2009, 08:21 PM	#271
Vette Powered Member Join Date: Dec 2008 Location: Austin Texas Posts: 87	I have a SC300 with a AEM standalone setup. I'm a long ways from you but I know the guys a Boost Logic. They built my SC. Anyway, if you would like to call them and talk a bit they will be a huge help. They are very well known and advertise on the Supra/Lexus Forums. Let them know you talked to Tad and I said they might be helpful. Just tell them I have the white Lexus. http://www.boostlogic.com/

September 28th, 2009, 08:59 PM	#272
garvice HybridZ Supporter Join Date: Jul 2006 Location: Australia Posts: 528	Do you still have the factory computer? Could you plug that in and see if it still revs (I know your engine is a lot different then stock, but it should still rev past 2500rpm with the factory one). That will eliminate the computer or sensors.

September 28th, 2009, 09:02 PM	#273
stony RB Moderator Join Date: Oct 2000 Location: Syracuse Utah Posts: 3,350	Not with 1000cc injectors installed. __________________ Unnatural Aspiration....turbo lag was invented to give V-8s a chance RB26DETT, T88-34D, 30 PSI, full tune JUN head, 280 Cams W/ 10.30 lift, 1.2mm cometic Metal head gasket, custom intercooler, HKS Fcon V Pro engine management, 2 speed powerglide, Fully built Dana rearend, Ladder bar suspension, Best 1/4 to date 9.10 @ 147mph 4 link car in the chassis shop now more updates soon http://smg.photobucket.com/albums/v2...ompilation.flv

September 28th, 2009, 09:07 PM	#274
garvice HybridZ Supporter Join Date: Jul 2006 Location: Australia Posts: 528	Good point, I retract my previous statement.

September 29th, 2009, 09:04 AM	#275
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	today hopefully im going to try a buddys supra aem box and see what happons __________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

September 30th, 2009, 08:03 AM	#276
Meph Member Join Date: Feb 2009 Location: Barrie ON Posts: 66	Im running a 1jz on the stock 12 tooth trigger wheel with my Haltech system and it seems to be working fine, so I think it would all be fine. Try a second ecu, thats how i cured my 2 month no-start issue __________________

September 30th, 2009, 10:21 AM	#277
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	Yesterday i was able to barrow a friend of mines supra aem ems. Plugged it into my car..did not change anything...and it revved to over 3500 rpms then started limiting...so at this point im almost positive its just tuning!!!!!!!! __________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

September 30th, 2009, 10:22 AM	#278
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	__________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

September 30th, 2009, 05:11 PM	#279
stony RB Moderator Join Date: Oct 2000 Location: Syracuse Utah Posts: 3,350	Christ go pay 300 bux and get it on a dyno!!!! and be done with it. __________________ Unnatural Aspiration....turbo lag was invented to give V-8s a chance RB26DETT, T88-34D, 30 PSI, full tune JUN head, 280 Cams W/ 10.30 lift, 1.2mm cometic Metal head gasket, custom intercooler, HKS Fcon V Pro engine management, 2 speed powerglide, Fully built Dana rearend, Ladder bar suspension, Best 1/4 to date 9.10 @ 147mph 4 link car in the chassis shop now more updates soon http://smg.photobucket.com/albums/v2...ompilation.flv

October 1st, 2009, 09:21 AM	#280
mike321go Member Join Date: Oct 2006 Location: mill valley, CA Posts: 334	LOL STONY..... out here 300 bucks is prob 3 hours of dyno time and then you have to pay the tuner 100 bucks an hour on top of that __________________ http://www.cardomain.com/ride/2559525 www.bertollis.com www.myspace.com/mikegtech

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