Will the caldina map sensor for flawlessly with a 3rd gen 3s?
i know the gen 2 map sensors work, and i have one, but i have read that they mess up the fuel and timing maps. Also My boss has a gen 2 map sensor in his swap and he's been running rich since the swap was done, which is assuring me that the engine wont run 100% with 2 bar map sensors.
can someone confirm that 2 bar maps are the problem?
and can someone tell me if the 4th gen one will work and is it plug and play? One is on ebay for a very good price

Gen 2s have a maf, not a map

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gen 2 still has a map sensor. Alltrac is green, mr2 is yellow

Are we talking about the same thing? You're asking if a gen 4 caldina 3sgte map sensor will work with a gen 3 3sgte?

You also say you have a gen 2 3sgte map sensor??? The gen 2 uses a maf to control fuel...

Toyota upgraded to a map based efi system starting with the gen 3. The only thing I can think of is a gen 2 map sensor being used for a stock boost gauge.

This post has been edited by enderswift: Mar 20, 2015 - 9:01 AM

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the gen 2 engines have a map sensor. Many people here are using them. Idk what they are used for on the gen 2 engines but they definitely work on 3rd gen engines. I know personally because my boss has a 5th gen alltrac one on his swap. I own an mr2 map sensor. (Turbo pressure assy.) Part number 89420-17030

**edit- im not saying they don't have mafs, because they do. But they have maps too**

This post has been edited by Arturio55: Mar 20, 2015 - 11:20 AM

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To answer your question, Yes a 4th gen map sensor will work on a 3rd gen. I am running it on mine with my 4th gen intake manifold and tb. Plug and play affair for the map sensor.

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Thank you

The MAP sensor on the 2nd gen is for the OEM boost gauge only. It's not part of the main fueling of the ECU. So, arguing about this is pointless on the OP subject.

Sam

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um i dont think so. look at the wiring diagrams. the PIM signal goes to both the gauge and the ECU for a reason.

Yeah, I forgot, it's also used for overboost protection (overboost fuel cut). This is why you can simply disconnect the vacuum line from this MAP sensor and no more overboost fuel cut on a gen 2.

Sam

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Is it pointless? Yes it was. but i was just defending the fact that the gen 2 engines have it after the guy thought i had no idea what i was talking about.
And regardless what it was used for on the gen 2 engine, all 90s toyota map sensors work the same. The just send out a 5 volt signal. Its up to the ecu to decide what to do with the signal. On gen 2 engines it just cuts fuel. On gen 3 and 4, it is responsible for quite a lot.