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Power FC AP Engineering HELP!

Author Post Essentials Only Full Version
darkstoria MR2 Enthusiast Total Posts : 44 Scores: 0 Reward points: 1950 Joined: 5/6/2012 Location: Sydney / Central Coast Status: offline Wednesday, November 30, 2016 6:27 AM (permalink) 0 Power FC AP Engineering HELP! GUYS NEED HALPP: Ok Here's the deal.... running an AP Engineering Power FC on a Gen2 3SGTE... The car is a 1990 so its a rev1 (i know AP Engineering one is designed for the rev2) so I repined it to suit as they both use gen2 motors and have seen it done before. Aimed to do the following: MAT sensor conversion - deleting cold start injector AIT sensor - Used engine lid temp sensor as advised. GM 3 Bar Map Sensor: Attempted to wire this in the factory location and change the PIM settings. Ok.... SO... Heres the conflicting data: AIT and MAT Wiring.... People Say AIT = THA / E2 MAT = THG / E2 PEOPLE ALSO SAY ITS THE OPPOSITE>!?!?! Can someone please tell me the correct way...does it matter?? Currently, we have the MAT going to THG and the AIT using the Old AFM loom with THA... NEXT: THE BLOODY MAP SENSOR.. Can someone first up... give me a detailed description on what the the MAT vs the MAP do in the MR2.... there seems to be a lot of confusion around the 2 ... as many cars simply use just a MAP sensor to manage fuel etc. I am aware that the MAP was used to implement fuel cut on the stock ECU... and perhaps tell the ECU to switch between closed and open loop fueling??? Anyways... What I found were people just cutting the old MAP out... and wiring in a new GM3 BAR unit (what we did) and then altering the PIM settings with the Datalogic software for the PFC. Further more... MAP readings could also be used via the Boost Control port on the side of the FC (SO I READ)... if this was the case would the factory one unplugged from vacuum and disconnected?? There's really very little information on it.. Here's the forum posts and websites I've been using to gather info... Anyone with more information or if you're currently running this setup, please message below or PM me. ANY HELP IS GREATLY APPRECIATED! http://www.mr2oc.com/41-p...wer-fc-guide-info.html http://www.mr2oc.com/41-p...fc-install-thread.html http://www.mr2project.com...ng-afm-on-ap-power-fc/ #1 1 Reply Related Threads
MCT_MR2 MR2 Deity Total Posts : 626 Scores: 104 Reward points: 4232 Joined: 4/7/2011 Location: Melbourne Victoria Australia Status: offline Re: Power FC AP Engineering HELP! Wednesday, November 30, 2016 9:28 AM (permalink) 0 MAP - manifold air pressure MAT - Manifold air temp One is used to measure the pressure of air in the inlet manifold (boost/vac) and is therefore used for the load sensing of the engine (MAP sensor). The map sensor is used on the gen 3 to calculate the fuel and timing, instead of the airflow meter as used on the grn 2. The MAT sensor is to measure the temperature of the air going into the engine, as the air temp effects the air density, so it is a load correction sensor. My understanding is that with the gen 2 ap engineering power fc, you wire the delco 3 bar map sensor to the 3 pin connector on the side of the box. In which case you can remove the factory sensor. Gen 3 ecus are the ones where you wire in the the delco sensor where the stock ones are (based on the links you have listed.) It does matter if you mix up iat and mat. Mat is the important one, as that will effect the timing and fueling. '88 MR2 4AGTE W/ EFR6258 224.6KW @ 20PSI more to come...... #2

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Post

Essentials Only Full Version

darkstoria

MR2 Enthusiast

Total Posts : 44
Scores: 0
Reward points: 1950
Joined: 5/6/2012
Location: Sydney / Central Coast
Status: offline

Wednesday, November 30, 2016 6:27 AM (permalink)

Power FC AP Engineering HELP!

GUYS NEED HALPP:
Ok Here's the deal.... running an AP Engineering Power FC on a Gen2 3SGTE... The car is a 1990 so its a rev1 (i know AP Engineering one is designed for the rev2) so I repined it to suit as they both use gen2 motors and have seen it done before.
Aimed to do the following:
MAT sensor conversion - deleting cold start injector
AIT sensor - Used engine lid temp sensor as advised.
GM 3 Bar Map Sensor: Attempted to wire this in the factory location and change the PIM settings.
Ok.... SO...
Heres the conflicting data:
AIT and MAT Wiring....
People Say AIT = THA / E2 MAT = THG / E2
PEOPLE ALSO SAY ITS THE OPPOSITE>!?!?!
Can someone please tell me the correct way...does it matter??
Currently, we have the MAT going to THG and the AIT using the Old AFM loom with THA...
NEXT: THE BLOODY MAP SENSOR..
Can someone first up... give me a detailed description on what the the MAT vs the MAP do in the MR2.... there seems to be a lot of confusion around the 2 ... as many cars simply use just a MAP sensor to manage fuel etc.
I am aware that the MAP was used to implement fuel cut on the stock ECU... and perhaps tell the ECU to switch between closed and open loop fueling???
Anyways...
What I found were people just cutting the old MAP out... and wiring in a new GM3 BAR unit (what we did) and then altering the PIM settings with the Datalogic software for the PFC.
Further more... MAP readings could also be used via the Boost Control port on the side of the FC (SO I READ)... if this was the case would the factory one unplugged from vacuum and disconnected?? There's really very little information on it..
Here's the forum posts and websites I've been using to gather info...
Anyone with more information or if you're currently running this setup, please message below or PM me.
ANY HELP IS GREATLY APPRECIATED!
http://www.mr2oc.com/41-p...wer-fc-guide-info.html
http://www.mr2oc.com/41-p...fc-install-thread.html
http://www.mr2project.com...ng-afm-on-ap-power-fc/

1 Reply Related Threads

MCT_MR2

MR2 Deity

Total Posts : 626
Scores: 104
Reward points: 4232
Joined: 4/7/2011
Location: Melbourne Victoria Australia
Status: offline

Re: Power FC AP Engineering HELP! Wednesday, November 30, 2016 9:28 AM (permalink)

MAP - manifold air pressure
MAT - Manifold air temp
One is used to measure the pressure of air in the inlet manifold (boost/vac) and is therefore used for the load sensing of the engine (MAP sensor). The map sensor is used on the gen 3 to calculate the fuel and timing, instead of the airflow meter as used on the grn 2. The MAT sensor is to measure the temperature of the air going into the engine, as the air temp effects the air density, so it is a load correction sensor.

My understanding is that with the gen 2 ap engineering power fc, you wire the delco 3 bar map sensor to the 3 pin connector on the side of the box. In which case you can remove the factory sensor. Gen 3 ecus are the ones where you wire in the the delco sensor where the stock ones are (based on the links you have listed.)

It does matter if you mix up iat and mat. Mat is the important one, as that will effect the timing and fueling.

'88 MR2 4AGTE W/ EFR6258

224.6KW @ 20PSI

more to come......

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