MAF swap - Hitachi to Bosch

[lacroupade]

Thought I'd better start a new thread....The following links (read right through) imply its often 'just' a matter of swapping the ECU and the MAF....any comments? Ok so my all-time wet dream car the Audi RS6 gets a mench there somewhere, but don't lose the plot...!

http://s4wiki.com/wiki/MAF

http://forums.audiworld.com/showthread.php?p=13768328#post13768328

http://www.6speedonline.com/forums/...es-hitachi-calibrated-k24-software-996tt.html

Apologies as I've posted this one before but you didn't read it did you....

http://www.wellsmfgcorp.com/pdf/Counterpoint3_2.pdf

 

[Timbo_1975]

Umm no, you'd need to swap the inj pump too, for a bosch item (rather than zexel) which would require the multiplug to be changed.

I would imagine the pin-outs on the ECU would be different too,possibly, so you would need the engine bay wiring loom from a donor.

You'd possbily they run into problems with the immobilizer...

Not easy unless anyone else knows better...

tim.

 

[Toolbox]

An absolute nightmare.

 

[lacroupade]

oh well, i tried.

 

[terranokid]

also the Hitachi maff is 100x more reliable

 

[lacroupade]

also the Hitachi maff is 100x more reliable

well so I've read TK....just needs the occasional clean and thats it....

 

[(RIP) PLANK]

i am wondering what would the puropse of the change be? wouldnt it be just as simple to just get a new MAf of the appropriate kind?

Are there any benefits to the swap?

 

[terranokid]

The Hitachi maff has a built in amplifier and costs about £400
The Bosch one isn't amplified and is a lot simpler design and costs between £35-£70 they seem to fail because they go out of tolerence

 

[lacroupade]

The Hitachi maff has a built in amplifier and costs about £400
The Bosch one isn't amplified and is a lot simpler design and costs between £35-£70 they seem to fail because they go out of tolerence

Didn't know about the amp, although at that price you'd expect them to be reliable!!!

 

[(RIP) PLANK]

i see the point now! thanks

 

[zippy656]

daft question of the day

Hitachi or Bosch one how do i find out what one ive got?

 

[lacroupade]

Hitachi or Bosch one how do i find out what one ive got?

should be written on it Zip I think, unless it happened to be an aftermarket Bosch replacement?

 

[zippy656]

ooh could be. will look when i get home

 

[ssteve]

good idea zippy
ssteve

 

[wildbri]

they are different shapes, and the Hitachi has three wires and I believe Bosch four.... bri

 

[zippy656]

didn tlook. but wife did say we had it changed, and wasnt that much .. was less than £150 all together.

thats the bill that made me join this wonderfull club!

 

[ssteve]

didn tlook. but wife did say we had it changed, and wasnt that much .. was less than £150 all together.

thats the bill that made me join this wonderfull club!

umm £150 is a bit to me
ssteve