what kind of ecu dose a 2006 RSX (a20a3) base have?
jw

 

(K20a3) not sure wich one it uses, buts its useless unless you have it flashed or redone with K-pro.....for any tuning or swaps...

 

2005-2006 RSX ECU's cant be used with K-Pro, the use of and adapter harness and a 2002-2004 ECU must be used...

The 2006 RSX-S ECU is a PBR-A14

You can use this ECU with a Re-flash tho, but if extensive parts are upgraded a K-pro upgrade would be a much better idea as the reflash'es are for basic I/E and there are no other reflashes available from HONDATA the the basic one...

Here is a short list as to other ECU's in other cars

IDENTIFYING HONDA/ACURA ECU'S

 

how do you know when a 2005 acura rsx-s has had a ecu or hondata added on a stock set up??? My fiance and i just bought one and it revs to like 8500???/is that kosher

 

honda made the red line it must be ok

 

Besides the fact that to run a pre 2005 ECU on your car you would need a conversion harness, which hooks into the ECU(its easy to see if looking at the ECU), as the conversion harness is a bunch of blue wires hooked onto all your factory wires and the ECU

In most cases a reflashed ECU would most likely have a sticker on it sometimes, but if it is stock, then the chances of it being a Hondata reflash is very slim, The stock rev limit is 8300 and its hard to tell up that high exactly were your limiter is at, but a reflash would run a bit higher rev limit at 8600..

The biggest tell tale would be your VTEC enguagement point, as the Reflashed ECU's use a floating VTEC point instead of a fixed VTEC point(stock) The floating VTEC is activated by your intake manifold pressure or throttle position. Stock VTEC is set at 5800, so if the car seems to activate below or before 5800rpm's it very well could be a reflash. The VTEC window is set between 4900-5800rpm's with the Hondata reflash, and raises is some situations in order to increase power and add some extra fuel saving features when used on the highway under part throttle or in higher altitude area's....

 

^ you ever gonna return my calls?

 

I agree with everything except the stock engagement point...its 6000rpm. And I believe stock it "floated" as well...6000 was not a dead set engagement...sometimes it would kick a little earlier or later depending on conditions.

 

Below info is taken from HONDATA's site.. this goes for the 2005-2006 ECU's as the 04-earlier ECU's are different..

This is what a Reflash gets you

• VTEC window from 4900 to 5800 rpm
• 8600 rpm Rev limit, increased from 8300 rpm
• Maximum torque gain 12 ft/lbs torque at 6000 rpm
• Maximum power gain 20 hp at 8000 rpm
• Peak torque increases by 6 ft-lbs
• Peak power increases by 8 hp
• Very wide flat smooth torque curve. 90% of peak torque available from 2200-8000 rpm.
• Fully dealer compatible - works with all Honda scan tools and equipment

We do not recommend the use of nitrous or forced induction for this reflash. For these applications use the K-Pro.

A VTEC "Window" was programmed in. This means the VTEC point is no longer fixed but varies according to manifold pressure (very closely related to throttle position) At sea level the VTEC point is 4900 rpm. At part throttle the VTEC switches at 5800 rpm. This allows you to cruise at 5300 rpm ( for example) on the lowcam and switch to the highcam just by giving more throttle. Also, as you rise in altitude, the VTEC point rises to 5800 rpm to reduce power loss after VTEC switchover.
You may feel a small dip at VTEC. Rest assured that even with this small dip you will have more power than before. You may also find the VTEC switch is smoother and quieter than before. Do not worry. VTEC is not missing; it is still operating.
This engine is sensitive to fuel quality and knock. With a higher octane fuel the ECU may advance the ignition slightly and make a little more power.
Overall the driving improvements to the 05/06 RSX mirror the 02-04 RSX reflash.