Which Mass Air Filter Sensor

[spazan]

Title should read Which Mass Air Flow Sensor

I own a 2000 Boxster S on which Mass Air Flow Sensor I need ot buy. The various sites that list them always list two kins: with E-Accelerator or without E-Accelerator. Can anyone tell me which I need to buy and a brief discription of E-Accelerator?

Thanks,

Steve

Edited March 22, 2006 by spazan

[Rom]

E-Accelerator is also known as E-gas or E-throttle, I believe. Some people also call it fly-by-wire (or drive-by-wire). All this basically means is that a stepper motor controls the throttle instead of a mechanical cable. So you have a potentiometer (variable resistor) on the throttle peddle, and an electrical signal goes to a stepper motor on your throttle butterfly and opens it as required.

Not sure which your car needs as I don't know if you have E-gas, but you probably do as all (as far as I know) Motronic ME7.2 (MY2000-on) Boxsters have it...

Thanks!

Shash

[Loren]

MY00 US/Canada Boxster's have egas (E-Accelerator).

[986Jim]

The easy way to know if you have drive by wire is how the gas pedal reacts when you put the cruise on.

On cars without E-Gas or drive by wire the car will hold the gas pedal down when you turn on the cruise control then when you cancel curise the pedal will pop back in the normal position.

With EGas or drive by wire, when you turn on the cruise the pedal will come back off the floor as if you have backed off the throttle but the car will remain in cruise mode. This is because the computer is keeping the throttle plate open for you and it's not directly linked to the gas pedal.

So put on your cruise and see if the pedal holds down off your foot or just comes back into the fully out position then you will know what you have.

[spazan]

The easy way to know if you have drive by wire is how the gas pedal reacts when you put the cruise on.

On cars without E-Gas or drive by wire the car will hold the gas pedal down when you turn on the cruise control then when you cancel curise the pedal will pop back in the normal position.

With EGas or drive by wire, when you turn on the cruise the pedal will come back off the floor as if you have backed off the throttle but the car will remain in cruise mode. This is because the computer is keeping the throttle plate open for you and it's not directly linked to the gas pedal.

So put on your cruise and see if the pedal holds down off your foot or just comes back into the fully out position then you will know what you have.

Thanks for all your responses. I know the question was a newbie question. I have been getting a cel that indicated 3 out of the 4 oxygen senosrs were bad. The shop and I figured it was best to replace all four. Now I am getting a P1126 and P1133 cel code. The shop cleaned the fuel injectors, checked the volume supply of fuel pump too low(ok), checked fuel pressur(ok), cleaned the MAF. Did not check for intake air system leaking. Still getting cel.

I ordered the newer version of the MAF(986-606-125-01-M14) from pelicanparts. The shop said I still had the orginal MAF. Will try that with new oem paper air filter.

Question: Do I need to have anything reprogrammed for the newer version of the MAF or can I just install it myself and have cel cleared.

[mee]

Do a search. Somewhere there is a post on MAFs. For 2000, you have to check the VIN # to see if you have the old eGas or newer eGas MAF since it changed mid-year. The post has the VIN #s to check. If you have the old MAF, the post says you have to have the ECU set to reflect the newer version.

[Tool Pants]

http://www.renntech.org/forums/index.php?s...c=2627&hl=B3130

http://www.renntech.org/forums/index.php?&act=ST&f=24&t=2649

http://www.renntech.org/forums/index.php?showtopic=659