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Microtech Rb20det Install

I8EE

By I8EE,
in Engines & Forced Induction

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I8EE

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Posted

hi guys,

me and my mate installed a lt10s into my rb20 over the weekend, started it up, and with the base tune it seems like its idling weird. kind of pops/knocks. . .

tps is showing 0% load.

also im not 100% sure that the knock sensor is hooked up correctly either. . . can anyone post up the wiring diagram for the tps sensor/switch?

i have read that on first start you have to adjust the tps? and lock in the timing??? any suggestions on how to go about??

Any help is appreciated! cheers

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PM-R33 Grand Master

PM-R33

Posted
Posted (edited)

Use hand controller to lock timing - Do not rev the motor!

Use timing light to set engine to correct base timing by adjusting the CAS.

When timing is set correctly, unlock timing with the hand controller.

You have the Microtech manual right?

Also the Microtech doesn't use the knock sensors.

Edited by PM-R33
I8EE Collaborator

I8EE

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  • Author
Posted

ok, so ive sorted out the tps. microtech is showing 0% then 99% with throttle.

im still not 100% about the CAS wiring. . .

Also, since ive relocated my battery to the boot. when i switch on my isolator switch, sometimes it seems like the coils spark and it even pops! any ideas on what i should check??

Cheers!

DVS JEZ Grand Master

DVS JEZ

Posted
Posted
  I8EE said:
ok, so ive sorted out the tps. microtech is showing 0% then 99% with throttle.

im still not 100% about the CAS wiring. . .

Also, since ive relocated my battery to the boot. when i switch on my isolator switch, sometimes it seems like the coils spark and it even pops! any ideas on what i should check??Cheers!

check yellow pages and find an auto elec in your area

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

but it really is, for the time it takes and people trying to diagnose it over the net without realtime testing and by the sounds of it there is some major issues with how ever it has been wired up.

STATUS Grand Master

STATUS

Posted
Posted

all the diagrams needed are on the microtech website, we get guys ringing 10000 times a week with similar issues and it is always wiring related, so unfortunately we just refer them straight to a dealer of whichever product it is. I dont take on half wired jobs as it often takes longer to fix than a new install...

jump on the microtech website and check you cas wiring to their diagrams

http://www.microtechefi.com/pdf/LT12NISSAN6CYLign.pdf

I8EE Collaborator

I8EE

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  • Author
Posted (edited)

hey trent, its got a base map on it, ive gone through the tps set-up and adjusted the timing to 10btdc, but its still running really rough. is that common?

Edited by I8EE
STATUS Grand Master

STATUS

Posted
Posted
  I8EE said:
hey trent, its got a base map on it, ive gone through the tps set-up and adjusted the timing to 10btdc, but its still running really rough. is that common?

whats the idle af?

Rolls Grand Master

Rolls

Posted
Posted

A microleb is a downgrade from the stock ECU, personally I'd sell it. They don't have closed loop O2 feedback so you are going to get rubbish economy unless someone spends hours and hours on the lower load cells when tuning it.

I8EE Collaborator

I8EE

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  • Author
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its a dedicated drift car, so i dont care for economy lol

pulled the plugs out trent and there soaked in fuel....thats base mapping for ya.... gonna chuck in the 750's i got and bring it in on the 9th

STATUS Grand Master

STATUS

Posted
Posted
  I8EE said:
yeah its showing 14.7 on the h/c. tried trimming it down to 20% but its still rich. . . plugs are soaked in fuel. . .

ignore that, its about 1000000000000000000000 light years off being accurate. use a real lambda sensor or lean it off in steps until it stalls then about 2 page up steps will get it idling if the wiring etc is all correct

DVS JEZ Grand Master

DVS JEZ

Posted
Posted
  STATUS said:
ignore that, its about 1000000000000000000000 light years off being accurate. use a real lambda sensor or lean it off in steps until it stalls then about 2 page up steps will get it idling if the wiring etc is all correct

Agreed. Just keep trimming it down. Is the vacuum/ boost line connected?

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