Does anyone know how many teeth their are on the crank trigger.. Is it 12+1 ? i need to know so i can get the ECU going ..

Thanks..

LEo

 

I have the HELMS manual.

What is the crank trigger?, I may be able to help.

 

I honestly do not know but I will try to find out for you.Jens

 

Nothing yet Jens?

 

This dude is putting together and ECU and doesn't know where the crank trigger is??????

 

Every car is different..and I am not about to let my car be torn apart so they can check the crank trigger.

 

I thought you were the Guinea Pig, Moo?

 

Fuck you!!! Bring your car out here and I'll hook it up...if you wanna be the guinea pig.

 

I wouldnt mind, as long as they gave me a loaner car! :P

 

True but i thought the ECU was already built. Wouldn't one need to know those details before construction of an electronic device? I'm not saying this guy doesn't know what he's doing but it doesn't give me much confidence in his product knowledge if he's posting on forums asking technical questions. I hope i'm wrong

 

You can build it without knowing the number of teeth on the crank trigger. The software is what will be dependant on knowing. The high speed counter is dumb and will work counting pulse but to determine what to do with these counts is in the software.

I'll also see what I can find out but for some reason I remember seeing 12x but I could be wrong. I'll dig on this when I get home.

 

exactly....on the IS300...I heard they stall..
The reason being that the Lexus crank has like 2 teeth missing and that their ECU knows this and overrides it....when the new ECU is hooked on....it sees it...doesnt know what it is...and stalls...

 

I wonder is the missing teeth are for a zero reference?? This is not uncommon in high speed industrial applications to use an interuption of the pulse inputs to act as a zero trigger.

 

Maybe...all i know is the Lex ecu runs on analog signals..and it is easier to fool, but digital signals read everything.

 

Im not looking for the CRANK TRIGGER.. I need to know HOw many Teeth are on the CRank for the trigger to pickup..

Thanks for your help.. It's for the Software that i need to write for the car before tuning

 

I counted 12 from the HELMS manual sketches.

 

Night Hawk.. Can you email me a picture of that page of your helms manual..?

Leonow@weapon-r.com

 

I wasn't able to track it down in the manual but it appears Nashua was... What pages was that??

Anyway, people were refering to the crank trigger as the the CPK, or crank position sensors which is what reads the pulses from the gear teeth. Just trying to isolate the area...

 

It should say in the Helms manual how many teeth are on the crank .. where the Crank Trigger pics up..

And thanks for all you guys help..

Scalbert.. give me a call.. I wanna know the new info..

LEo

 

See page 6-28 in Helms Manual for CL-S 2001.

 

More like he is trying to use the Internet to gain the information more easily than tearing apart a car.

 

Could u scan page 6-28 and email LEO.. I do not have access to a scanner.

 

thanks guys..

leonow@weapon-r.com

 

I just got out the manual and will bring it into the office tomorrow. It'll go out first thing in the mornimg.

 

Here is the scan:

Timing Gear

 

thanks guys.. i'll see if this is what we need to figure out the problem.