1Z engine, I need to maintain a RPM

artie b

Veteran Member
Joined
Sep 23, 2001
Location
zip code 46371
TDI
97 B4 TDI stock, have owned and repaired 4 B4 TDI's since 1996
Hi, I know the speed sensor in the transmission is what the cruise control uses. What I'm working on would require the ECM to receive how many pulses, to maintain a 1800 RPM? I'm sure I can get the correct number of pulses, somewhere using a tone wheel, and possibly a CPS or antilock wheel speed sensor. Anyone have an idea? Thanks, Artie
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
While Im not positive of what your set up is, you can use this and a universal vss pickup to run off of about anything.


Pretty much fools the ECU into thinking it's seeing the correct TDI speed/rpm/gear.
 

artie b

Veteran Member
Joined
Sep 23, 2001
Location
zip code 46371
TDI
97 B4 TDI stock, have owned and repaired 4 B4 TDI's since 1996
That's what I'm working on. And it's for a standby generator that needs the 1800 RPMs. If I knew the number of cycles, for 1800, I can go from there. I slept through math class. Thanks
 

artie b

Veteran Member
Joined
Sep 23, 2001
Location
zip code 46371
TDI
97 B4 TDI stock, have owned and repaired 4 B4 TDI's since 1996

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Isn't ess engine speed? If so yes thats what drives your tach.

This little box takes tach signal, vss signal and a ground wire.

I'm not super familiar with the 1z but happens to reed that this was built to maintain rpm for applications like a generator. Or to put cruise control in your TDI swapped VW bus.

A quick email to David would let you know if this would be a simple solution to your issue.

Looking at the diagram pin 68 is your ECU tach signal for the 1z
 

turbodieseldyke

Veteran Member
Joined
Jun 6, 2010
Location
Free Mustache Rides
TDI
98 jetta
How many times are you going to ask the same question?
and now it's #4
 

artie b

Veteran Member
Joined
Sep 23, 2001
Location
zip code 46371
TDI
97 B4 TDI stock, have owned and repaired 4 B4 TDI's since 1996
This was the first reply that had this tach2vss. Thanks for this, Artie
 
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