sj408

iTrader: (6)

well i think i figured out my problem.... this sensor says "boost pressure sensor" and has 89421 12111 for a part number..... this leads me to believe its not a JDM map sensor and in fact is a USDM map sensor that comes on the tt supras that have a maf and a pressure sensor

sj408

iTrader: (6)

any of you guys got a part number from your MAP?

Bflatsharp

iTrader: (18)

The number on my map sensor is different. #89421-12110

Wanted to see what parts.com would pull up.
89421-12111 - Came up with 94-98 Supras
89421-12110 - Didn't pull up anything, which means it's not sold in the US

sj408

iTrader: (6)

weird, i must have gotten a usdm turbo pressur sensor then huh? you did the gte computer swap too? and are running the 12110? could you possibly post a picture please?

can everyone else please post map part numbers? i have a feeling mine is a usdm sensor

Bflatsharp

iTrader: (18)

I would think you have a USDM sensor. That website is pretty reliable, I used in when I worked for a car warranty company.
If the part number has superceded it will give you the new number. The number I have says it can't be found.

No, it's not running yet. Hell I don't even have a motor or transmission in. But I'm going the same route.

Hope this is your fix!

sj408

iTrader: (6)

just looked on aussie ebay and they have my same map sensor selling from an aristo, picture looks identical too. Mine must be fried or something cause not going past 4k is gheyyyyyyyyyyyyyyy

post a pic of your map please?

Bflatsharp

iTrader: (18)

What would you like a picture of?

My sensor says - turbo pressure sensor

sj408

iTrader: (6)

Mine too, hmnnnnnnnnnnnn i gotta figure this out. Mine seems to be legitely from an aristo... but where is yours from? i find some info on the net that says the part numbers superceded eachother and they are identical but im not positive on this

Bflatsharp

iTrader: (18)

I bought mine over a year ago on Supra Forums.

What numbers do you have under the toyota part number?

More research says they are interchangeable.....

sj408

iTrader: (6)

Ill have to see if i can make it out its really faded... Do you happen to know the plug orientation? ive been going by the picture ali posted but still get a code for map

Ali SC3

iTrader: (10)

jdm and usdm are the same different part numbers. what kind of iat are you guys using. if you dont have that wires up right it will affect the map, same with incorrectly wired tps.

99SC42

iTrader: (44)

usdm map sensor , aristo map sensor , 1jzgte map sensor they will all work unless you bought the 4bar omni map sensor which will not work on the stock ecu.

As long as you can pull the codes you are in good shape!

edit Ali posted while i was typing.

Bflatsharp

iTrader: (18)

I'll be running an Aristo IAT

sj408

iTrader: (6)

Im using a jdm aristo IAT i guess, so which way is it supposed to be wired up? ill switch it around and see if it helps

So your sure the usdm and jdm are the same??? even though the usdm is used with a maf and the jdm is used primarily for afm?

Ali SC3

iTrader: (10)

yes its the same because the US ecu uses the same map sensor to get a boost reading for fuel cut. even though its not used for fueling it is the same map sensor.
so you have the signal wire in the middle spot on the connector, and the ground and 5v on the outer spots.

are you guys leaving the maf pin connected to b66 and jumping it to b62. if you are that is not correct, you actually need to remove the pin from the connector and move the pin to b62, do not leave anything in b66 it can have an effect on the signal.