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Nope,

Still trying to figure it out.

xxxx$ me really cause I can drive and use the A/C fine on the JDM Rev2 ecu.

I'll keep at it though.

yep, let it learn for 30 mins and still had the A/C compressor issues. Removed pin - ACT1 out of the equation and it works fine even though A/C idles a little rough.

Do you know what ACT1 amplifies in the A/C system? All 3sgte harnesses seem to have it.

Thanks,

So I've spent some time today trying to source what is causing the A/C to go haywire when using the AP Eng. PFC. I double checked all my wiring, Then I thought I'd start looking into the AC1 and ACT pins. I removed the ACT pin from the harness and found that the A/C compressor and clutch no longer e...

Hi Black GTS

Thanks for the info but no such luck unfortunately.

Any input from other AP Engineering Gurus out there???

Cheers

Gents, I thought I'd wire in my SW20 AP Engineering PFC to my 1990 ST185 this weekend. I repinned my harness extension, plugged my JDM gen2 ECU(89661-17380) for which my PFC was made for and turned the key. IGN to SPARK to IDLE = :mrgreen: So I proceeded to plug in the PFC and it fired up without an...

It will be converted to a speed density system.

dex,

The AIMT sensor on my controller is controlled by the THA & E2 pinouts within the AFM and the Apexi instructions advise to use these for the MAT sensor. So this being correct what other wiring would you use it on?

Thanks Dex.
I'll wire up the THG to an AIT sensor and leave CCO alone.

OK got it

Here's a pic of the Rev2 pinout. The ones in blue have the correct sensors going to them



Dex, do you see any left out that may cause problems, besides THG/CCO

It has EGR not the EGR Sensor.

10 of 16?

Reading it like this?
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16

or like this
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9



thanks

So that would be THG by looking at my image in the last post?

Now why would this sensor be used on a power fc for tuning and monitoring.
Any ideas?

OK, we are getting somewhere or NOT

Dex, this AC Evap Temp sensor, where is it located since this is what you said it is?

These are the Pinouts for a JDM 89661-17380 ECU for those that are interested.

So why would their 89661-17380 Rev2 ECU have a pinout for EGR and an EGR Temp Sensor then?

Could it be they used the same ECU as the the UK/US but with a different engine harness that did not have a wire for the EGR?

Thanks,

Jim,

Can you recall if your Rev2 had EGR?

Thanks,

The AP Eng Power FC can work in both L-Jetro and D-Jetro setups. It is specifically made to be used as a D-Jetro setup but to use all Rev2 sensors. This is why the instructions mention the use of only 1 sensor the MAT wired to the AIT wires from the AFM harness. No mention anywhere on the extra docu...

Jim, The AP runs perfectly with both the Gen2 and Gen3 MAP sensors. This is the reason I think THE and CCO are basically useless sensors for tuning. I'm waiting to see if someone with a Rev2 and OEM ECU chimes in to see if they can disconnect their EGR sensor from the ECU harness to see if they get ...

Thanks jim. I've wired my harness to Rev2 spec minus THG and CCO. A Rev3 Map Sensor is installed 440cc injectors It starts with the AP PFC installed with AFm attached. It drives fine, the only issue I have is the CEL is on constantly due to THE being left off. When using the Rev2 ECU there is no CEL...

I've been reading this http://www.imoc.co.uk/forums/viewtopic.php?t=46950&postdays=0&postorder=asc&highlight=fc&start=0 Jim, MR2LOVER says the wiring should be MAT=THA, AIT=THG. Can you remember how you had it? I've read the PFC Gen3 doesn't use the AIT for tuning anyway. Is this cor...

thats incorrect. the AP is designed to be used both with and without the afm. ie, straight plug and play if you got an afm setup. or rev3+ map based setup when you remove the afm and swap in the rev3+ bits. you just choose which map sensor option you want in the commander. My thoughts exactly jimGT...

Dex - Are you 100% sure on this?

Unfortunately there's no real definate answer on the forums. Due to it being such a rare ECU