need an answer quick! ecm swap 2005 and 2003

Sabber · **Posted:** Fri Mar 05, 2010 1:25 pm

I have a 2003 NA (non turbo) baja sport. Will the ECM from a 2005 NA be compatible?

Sabber · **Posted:** Sat Mar 06, 2010 12:45 pm

Does anyone now where I can find this information at least?

Zooom · **Posted:** Mon Mar 08, 2010 5:06 am

I would assume there'd be no difference, but the safe bet would be to look at the numbers on the ECM's to see if they match at all...

Sabber · **Posted:** Fri Mar 12, 2010 8:43 am

Im trying to find out what I can about the ecm, but it seems like there are quite a few different numbers. Letter and number combination such as D1 seem to be very prominent on the actual units. Any idea what this may refer to?

Nitro350Z · **Joined:** Tue Jan 20, 2009 8:30 pm **Posts:** 16

Didn't the 05 get an upgraded engine that uses a MAF sensor instead of a MAP and has subarus avcs system?
From Wiki:

EJ251
SOHC Intake volume is calculated by the use of a MAP sensor, unlike the EJ253 which uses a MAF sensor. Compression ratio is 10.0: 1.
... Baja 03-04 ...

Ej253
SOHC - ISO 165 hp (123 kW) @ 5600 rpm, 166 ft·lbf (225 N·m) torque @ 4000 rpm. Intake volume is regulated by use of a MAF sensor, unlike the EJ251 which is regulated by a MAP sensor. I-Active valves (VVT intake side) on 06+ models.
... Baja 05+ ...

The 03 has the EJ251 and the 05 has the EJ253. So I'm guessing they're not compatible.

need an answer quick! ecm swap 2005 and 2003

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