2nz ecu on 1nz engine. Pros n Cons

[abwqur]

Can we use 2nz ECU on 1nz engine! Car is running fine with a check light... Electrician said it will be removed no problem.
Actually i have change my Vitz 1.0 engine to 1.5... Person sent the ECU on which name was rubbed... When i searched the part code it said 2nz... But car runs fine. What should i do? Keep it? Any problem i will face?

[tintin1]

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[abwqur]

But engine is working well.

[Hassan1991]

Every desi electrician do this now a days.
Connected it to obd2 device. Check your fuel trims. Your ecu will be compensating to manage the air fuel ratio. As ecu is programmed for 2nzfe

[abwqur]

Thanks, @Hassan1991 bhai what problems will i face?

[anon36782927]

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[abwqur]

Oh OK... Does it effect speed also... My car is going 0-100 in 11sec... N top speed 170

[Hassan1991]

Yes it does.

[abwqur]

Thanks.. I've changed my ECU... Now VTEC sensor light is gone... With 2nz ECU... My Check Engine light was there... And scanner showed VTEC sensor problem...
But hassan bhai... The ECU which i have bought now has no label above it... Shopkeeper said its 1nz Manual... I believe its manual because with auto it show gear lever codes... but how can i confirm its 1nz not 2nz r 1sz...
Checklight is gone now...

[abwqur]

Now i understand fully how to check fuel trims..i will check Long and short term fuel trims, Anyway that i can check with scanner the model no of ECU?

[abwqur]

Yes, it was high and there was check engine for vtec.

[hasankhurshid29]

check engine for vtec.

Toyota engines don't have VTEC. It's only for Honda. May be VVTI error is showing

[Hassan1991]

Great
Not sure about model number. And not vtec, VVTI.
Now you will feel difference in mileage as well.

[abwqur]

Yes, VVT sensor... Sorry.

[abwqur]

I searched about model number its same... Its from yaris 1.5 TS... 1nzfe manual.. 89661-52320...

[Hassan1991]

good , manual ecu is not common.

[abwqur]

Now i have to buy OBDII scanner. Which one is cheapest and will work on all new old cars? I already have one.. but it dont works on old cars...

[Hassan1991]

which one you have?
most common is elm327 and cheap

[abwqur]

This is....

[abwqur]

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