Hi, I am going to do a rev1 to 3 tubby ecu conversion. 1 of the parts is a map sensor as opposed to the air flow meter. Have looked on the bay and they seem to look like the turbo pressure sensor by the diag port on my rev1.
Does the rev 3 only have this 1 sensor for boost and what is the difference between the rev 3 and the rev1.
Also Is there any other map sensor i can use as the second hand prices am stupid compared to when i was going to do this years ago.
thanks
rev 3 map sensor querry/differences
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Re: rev 3 map sensor querry/differences
You need to use an OEM Rev3 MAP sensor. They've never been cheap S/H.
Re: rev 3 map sensor querry/differences
Peter Gidden - SBITS wrote:You need to use an OEM Rev3 MAP sensor. They've never been cheap S/H.
thanks,is there only the one sensor on the rev3. don't want to buy one then find out got the wrong one through wrong item description etc.is the rev also located at the diag port bracket?
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Re: rev 3 map sensor querry/differences
nuttasie wrote:Peter Gidden - SBITS wrote:You need to use an OEM Rev3 MAP sensor. They've never been cheap S/H.
thanks,is there only the one sensor on the rev3. don't want to buy one then find out got the wrong one through wrong item description etc.is the rev also located at the diag port bracket?
Just one sensor for Rev3-5. Purple/silver label.
Re: rev 3 map sensor querry/differences
Slightly/largely off topic. I got a mapecu(performance-motor-research)ages ago when was going to just bin the afm. It has its own map sensor in order to bin the afm. Any idea wheither it might be compatable as a substitute as never planned on using with a rev3 ecu but if I can save a few bob using something i already got
Last edited by nuttasie on Tue Sep 30, 2014 1:50 pm, edited 1 time in total.
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Re: rev 3 map sensor querry/differences
nuttasie wrote:Slightly/largely off topic. I got a mapecu(performance-motor-research)ages ago when was going to just bin the afm. It has its own map sensor in order to bin the afm. Any idea wheither it might be compatable as a substitue as never planned on using with a rev3 ecu but if it can save a few bob using something i already got
Doubt it very much. OEM sensor is 2.5 bar which is highly unusual.
As i said, use the OEM sensor.
Re: rev 3 map sensor querry/differences
What's the advantage of switching to a MAP from an AFM?
Re: rev 3 map sensor querry/differences
Ok,thanks for your time.
sie
sie
Re: rev 3 map sensor querry/differences
Well for me its getting rid of another item to not worry about going wonky lol , but to alot its about getting rid of a restriction depending on power goal i believe.
Re: rev 3 map sensor querry/differences
MR2's are hotwire AFM, aren't they? Is it that much of a restriction? I'm not saying it's a bad idea (I wouldn't know), I'm just curious.
Re: rev 3 map sensor querry/differences
Gazza_DJ wrote:MR2's are hotwire AFM, aren't they? Is it that much of a restriction? I'm not saying it's a bad idea (I wouldn't know), I'm just curious.
No they are not hot wire.
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
Re: rev 3 map sensor querry/differences
Gazza_DJ wrote:What's the advantage of switching to a MAP from an AFM?
It's simpler, cheaper to produce, use one part rather than two, etc. At 400+ bhp there are said to be flow advantages.
It's a flap type AFM. not hot wire.
Re: rev 3 map sensor querry/differences
Ahh, fair, I'm sure I read somewhere they were hotwire!