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R32 Auto Ecu In A Manual?

Hakai

By Hakai,
in Engines & Forced Induction

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Hakai Enthusiast

Hakai

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Once again I find myself at a loss with the damn search button. Perhaps I'm using it wrong, I don't know but I can never turn up anything even remotely related to what I need to know with it :D So here goes.

Just pulled my ECU out and ran the diag. Only error code that came up was 54, which is "Auto signal to ECU" I believe. My car was previously an auto, as is quite obvious due to the original auto dash still being there, with the auto gear position lights and power light and all!! I would have assumed the auto ECU would have been changed for a manual ECU when the conversion was done (Which was, as far as I can tell, in 1998, well before import in 2005). This is however, obviously not the case.

My question is, is this a problem? Should I worry about having an auto ECU in a manual? Should I go out immediately and get a manual ECU and change it over? If I do, will anything else cease to function?

Thanks in advance.

Ben.

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Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted
Once again I find myself at a loss with the damn search button. Perhaps I'm using it wrong, I don't know but I can never turn up anything even remotely related to what I need to know with it :D So here goes.

Just pulled my ECU out and ran the diag. Only error code that came up was 54, which is "Auto signal to ECU" I believe. My car was previously an auto, as is quite obvious due to the original auto dash still being there, with the auto gear position lights and power light and all!! I would have assumed the auto ECU would have been changed for a manual ECU when the conversion was done (Which was, as far as I can tell, in 1998, well before import in 2005). This is however, obviously not the case.

My question is, is this a problem? Should I worry about having an auto ECU in a manual? Should I go out immediately and get a manual ECU and change it over? If I do, will anything else cease to function?

Thanks in advance.

Ben.

No it shouldnt be a issue.

If anything you should get more power as in the R33 the auto ecu ran a little leaner then the manual which gives you more power (not sure about r32 but it should work)

Remember the auto is controlled by another ECU.

Hakai Enthusiast

Hakai

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  • Author
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the only real difference i can see and have heard is the idle is a bit higher man....i have the same in mine. runs fine....and the diff helps too

Thanks for the reassurance :rofl:

So you're saying the auto diff has a different final ratio than the manual??? Is it higher or lower, meaning more geared towards accelleration or top end speed? Sorry for the shoddy question, I'm just not sure which way diff gearings work :D If someone could explain that too, I'd appreciate :rofl: (Like, is 4.11 a more top speed or better accellerating ratio than 3.08?)

Ben.

Oblivion Grand Master

Oblivion

Posted
Posted
Thanks for the reassurance :rofl:

So you're saying the auto diff has a different final ratio than the manual??? Is it higher or lower, meaning more geared towards accelleration or top end speed? Sorry for the shoddy question, I'm just not sure which way diff gearings work :D If someone could explain that too, I'd appreciate :rofl: (Like, is 4.11 a more top speed or better accellerating ratio than 3.08?)

Ben.

Yeah better acceleration it seems to me, 4 and a 3 in the ratio somewhere i think...it is on the plate under your hood. and yeah it will runs ever so slighty rich, not enough to worry about i still get 500 out of a tank. Not quite sore how the ratios work cant member. But a better accel cause the auto has the gearing for cruising....at 100 in my auto was at about 2500 now at 3000 in manual.
Muffa180 Contributor

Muffa180

Posted
Posted

The higher the ratio the more rpm your car will do on the freeway to maintain a certain speed.

eg. 4.1:1 5th gear 100kms hr 3000 rpm

3.8:1 5th gear 100klm hr 2800 rpm

These are only examples not accurate measurments.

The 4.1:1 will accelerate faster but use slightly more fuel.

Cheers Michael...

Hakai Enthusiast

Hakai

Posted
  • Author
Posted
The higher the ratio the more rpm your car will do on the freeway to maintain a certain speed.

eg. 4.1:1 5th gear 100kms hr 3000 rpm

3.8:1 5th gear 100klm hr 2800 rpm

These are only examples not accurate measurments.

The 4.1:1 will accelerate faster but use slightly more fuel.

Cheers Michael...

Thanks mate, that's what I was looking for.

Higher ratio = faster accelleration and lower top speed.

Lower ratio = slower accelleration and higher top speed :P

Ben.

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