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How does NATS work? engine conversion ecu/bcm matching?

roadhazzard1
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roadhazzard1 Apprentice

roadhazzard1

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Posted (edited)

How does NATS work? engine conversion ecu/bcm matching?

Hi all have now got the VQ25det in and turning over and priming fuel off the key although no spark. 

still using the original key and ignition Barrel and BCM not from the donor M35. We have these items from the donor car but do not have a matching BCM to go with the ECU from the donor car. 

How does bcm matching work in these cars? does key/ barrel and bcm all sync to tell ecu not to immobilise? assuming it needs the key to match barrel and then both these to match the BCM and ECU?

Has anyone had to get a new bcm and had it programmed?

If the new ecu from the donor car doesn't match the original bcm in the car i assume it wont let the car start. Is it possible to reset or reprogram the original BCM to match the new stock ecu from the car the motor is going into? 

The v35 bcm and m35 bcm have slightly different pinouts on the bcm so am hoping either there is a way to have the old bcm communicate with the new ecu.

essentially can a locksmith make this work/ programming or some kind of NATS block? 

Short of going aftermarket ecu im out of ideas with this f**king car haha. 

Edited by roadhazzard1
West Grand Master

West

Posted
Posted
43 minutes ago, roadhazzard1 said:

How does NATS work? engine conversion ecu/bcm matching?

Hi all have now got the VQ25det in and turning over and priming fuel off the key although no spark. 

still using the original key and ignition Barrel and BCM not from the donor M35. We have these items from the donor car but do not have a matching BCM to go with the ECU from the donor car. 

How does bcm matching work in these cars? does key/ barrel and bcm all sync to tell ecu not to immobilise? assuming it needs the key to match barrel and then both these to match the BCM and ECU?

Has anyone had to get a new bcm and had it programmed?

If the new ecu from the donor car doesn't match the original bcm in the car i assume it wont let the car start. Is it possible to reset or reprogram the original BCM to match the new stock ecu from the car the motor is going into? 

The v35 bcm and m35 bcm have slightly different pinouts on the bcm so am hoping either there is a way to have the old bcm communicate with the new ecu.

essentially can a locksmith make this work/ programming or some kind of NATS block? 

Short of going aftermarket ecu im out of ideas with this f**king car haha. 

From memory, these nm35 don't have a chip in the key.

roadhazzard1 Apprentice

roadhazzard1

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1 hour ago, m35stagea said:

I doubt youll need anyhting but nissan datascan can reprogram.

Thanks I havnt used it before just ordered a Bluetooth OBD2 adapter and will download the datascan program and see how we go programming the bcm to match the new stuff.

cheers 

m35stagea Community Regular

m35stagea

Posted
Posted
2 hours ago, roadhazzard1 said:

Thanks I havnt used it before just ordered a Bluetooth OBD2 adapter and will download the datascan program and see how we go programming the bcm to match the new stuff.

cheers 

You need datascan 2 for your car i think. 

Duncan Grand Master

Duncan

Posted
Posted

I doubt datascan can help but anyone with consult with the security option should be able to code keys like Bob said. Any nissan dealer or some specialist shops like Justjap. 

roadhazzard1 Apprentice

roadhazzard1

Posted
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Posted
1 hour ago, m35stagea said:

You need datascan 2 for your car i think. 

Yep i figured that out on the site thanks. We are just going to order a Link g4 fury for the car i think so hopefully these problems just disappear with the standalone haha. 

m35stagea Community Regular

m35stagea

Posted
Posted
On 07/08/2017 at 6:57 PM, Duncan said:

I doubt datascan can help but anyone with consult with the security option should be able to code keys like Bob said. Any nissan dealer or some specialist shops like Justjap. 

Why It has this option.

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