Need a stock ROM for a euro CA18DE

Nistune topics specific to the 6802 cpu

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martinb12gti
 

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Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Have anyone a stock ROM for a euro CA18DE from the Nissan Sunny, Sentra, Pulsar?
bachig24u
 

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Re: Need a stock ROM for a euro CA18DE

Post by bachig24u »

Have a look on the software page for the Rompack.

all the supported roms are there, if not, it can be downloaded from the vehicle via consult and
merged in to an existing rom if using the correct address file corresponding to the ecu part number.
martinb12gti
 

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Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Hello

The Rom i need is not in the Rompack :(
And i have no Consult in my 1986 Sunny.

My problem:
I drive the Sunny (Sentra) B12 CA18DE with a 200SX (180SX) RS13 CA18DET ECU.
Then i change the injectors, fuel pump, fpr and maf to CA18DET.
I put in the fuel and timing maps from the N13 CA18DE from the Rompack.
Next i change the k-constant so i can drive on 13-14 AFR, under full load about 12 AFR.
It runs very good but not on full power.
On full throttle it always show 52-53% load?
Why? Because there is no turbo?

Its easier to take the CA18DE Rom and change k-constant and injector latency?
louiswun
 

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Location: Hong Kong

Re: Need a stock ROM for a euro CA18DE

Post by louiswun »

martinb12gti wrote:Hello

The Rom i need is not in the Rompack :(
And i have no Consult in my 1986 Sunny.

My problem:
I drive the Sunny (Sentra) B12 CA18DE with a 200SX (180SX) RS13 CA18DET ECU.
Then i change the injectors, fuel pump, fpr and maf to CA18DET.
I put in the fuel and timing maps from the N13 CA18DE from the Rompack.
Next i change the k-constant so i can drive on 13-14 AFR, under full load about 12 AFR.
It runs very good but not on full power.
On full throttle it always show 52-53% load?
Why? Because there is no turbo?

Its easier to take the CA18DE Rom and change k-constant and injector latency?

I think you need to re-scale the TP
martinb12gti
 

Posts: 16
Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

How can i rescale the TP?

On idle the TPS shows 0.45V and on full throttle more than 4.0V
bachig24u
 

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Location: Campbelltown, NSW
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Re: Need a stock ROM for a euro CA18DE

Post by bachig24u »

[quote="martinb12gti"]Hello

The Rom i need is not in the Rompack :(
And i have no Consult in my 1986 Sunny.

My problem:
I drive the Sunny (Sentra) B12 CA18DE with a 200SX (180SX) RS13 CA18DET ECU.
Then i change the injectors, fuel pump, fpr and maf to CA18DET.
I put in the fuel and timing maps from the N13 CA18DE from the Rompack.
Next i change the k-constant so i can drive on 13-14 AFR, under full load about 12 AFR.
It runs very good but not on full power.
On full throttle it always show 52-53% load?
Why? Because there is no turbo?

Its easier to take the CA18DE Rom and change k-constant and injector latency?[/quote

installing a turbo will increase breathing capacity and therefore increase load readings.
Is there a plan to install some form of supercharging in the future?
martinb12gti
 

Posts: 16
Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Yes i have a Toyota SC12 supercharger, but this is my project for winter :wink:
Now i would drive NA.

I have found the thread to rescale the TP load :roll:
martinb12gti
 

Posts: 16
Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Still searching for a Stock CA18DE Rom, the ca18de maps in the rom package make no sense to me.

Regards Martin
bsdkllr
 

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Location: Boston, MA

Re: Need a stock ROM for a euro CA18DE

Post by bsdkllr »

is the car still NA with no turbo.
are you having any issues with driveability?

Adjusting KConst will have an effect on the MAX TP readings as its directly related. you can scale down you scalers to set a max of say 60 and it will give you more resolution in your fuel and timing maps.
Matt
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Re: Need a stock ROM for a euro CA18DE

Post by Matt »

We just don't have that ROM chip, because it is not a common model, and no one has ever read out the ROM file and saved it to BIN
martinb12gti
 

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Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

@bsdkllr

The car runs very good with my maps since 2013, but in the next weeks i take the engine out and put a standard CA18DE in, so i will start with the standard CA18DE maps.

@Matt

If i send you a original CA18DE ECU, can you read the ROM file?

Regards and many thanks
Martin
Matt
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Re: Need a stock ROM for a euro CA18DE

Post by Matt »

I can but it might take a while to get here. Its taking over a month to get items with the COVID-19 stopping many flights to/from Australia

It might be cheaper/easier to get a programmer like this one and read it yourself:
https://www.mcumall.com/store/GQ-4x-uni ... programmer

The chips are normally 27C128 or 27C256 which you can read them out as once desoldered
martinb12gti
 

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Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Is this in the link all i need?

Regards
Matt
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Re: Need a stock ROM for a euro CA18DE

Post by Matt »

Yeah that will read the chip, if you are all good removing it from the ECU
martinb12gti
 

Posts: 16
Joined: Fri Apr 12, 2013 11:28 pm

Re: Need a stock ROM for a euro CA18DE

Post by martinb12gti »

Hello Matt,

What chip is the right one i should desolder from the CA16DE and the CA18DE ECU?

Thank you
Attachments
IMG_20200515_192137_copy_1200x1600.jpg
CA18DE
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IMG_20200515_193340_copy_1600x1200.jpg
3xCA16DE 1xCA18DE
(355.19 KiB) Downloaded 1742 times
IMG_20200515_192912_copy_1600x2133.jpg
CA16DE
(952.7 KiB) Downloaded 1742 times
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