Edelbrock supercharger is out. Need expert thoughts on it. - Page 5 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Aztec · 08-22-2015, 07:58 PM

Decay107 · 08-22-2015, 08:03 PM

Quote:

Originally Posted by Aztec

If you'd come to Pat's Acres, you would know this conversation is 100% on topic right now

johan · 08-22-2015, 08:10 PM

Alright, I did this - no dice. Possible we missed something?

(sharpie on 1W so I don't get them mixed up)

Aztec · 08-22-2015, 08:11 PM

Quote:

Originally Posted by Decay107

If you'd come to Pat's Acres, you would know this conversation is 100% on topic right now

Haha I WOULD have but I was out of town :p

Sent from my SM-G900V using Tapatalk

johan · 08-22-2015, 08:15 PM

Maybe Honda's pin 1 = Subaru's pin 6 on the connector? So we have it exactly backwards?

johan · 08-22-2015, 08:18 PM

Quote:

Originally Posted by johan

Maybe Honda's pin 1 = Subaru's pin 6 on the connector? So we have it exactly backwards?

Which ironically would have meant all I had to do was swap 1/2

Decay107 · 08-22-2015, 08:20 PM

Quote:

Originally Posted by johan

Alright, I did this - no dice. Possible we missed something?

(sharpie on 1W so I don't get them mixed up)

Perhaps they operate on different DC voltages? Check the voltage of Black/Blue, confirm that is what the Honda TB expects to see. After that we may have either the TPS (white and white/red) or the throttle plate (white/sharpie and red) swapped

Quote:

Originally Posted by johan

Maybe Honda's pin 1 = Subaru's pin 6 on the connector? So we have it exactly backwards?

Possible, maybe compare to a picture of a Honda wiring harness to confirm layout?

johan · 08-22-2015, 08:30 PM

Quote:

Originally Posted by Decay107

Perhaps they operate on different DC voltages? Check the voltage of Black/Blue, confirm that is what the Honda TB expects to see. After that we may have either the TPS (white and white/red) or the throttle plate (white/sharpie and red) swapped

Possible, maybe compare to a picture of a Honda wiring harness to confirm layout?

Well, one thing that tipped me off ... there's actually a correlation between the pins on the TB side and the pins in the harness - like they're different color metals. 2 / 4 - i.e. 2 for tb, 4 for tps - and this color differential is existent on both TBs and the wire harness - I am struggling to see that as coincidental.

Decay107 · 08-22-2015, 08:32 PM

Quote:

Originally Posted by johan

Well, one thing that tipped me off ... there's actually a correlation between the pins on the TB side and the pins in the harness - like they're different color metals. 2 / 4 - i.e. 2 for tb, 4 for tps - and this color differential is existent on both TBs and the wire harness - I am struggling to see that as coincidental.

or maybe 2 power and 4 signal...

johan · 08-22-2015, 08:39 PM

Well....

[ame="https://www.youtube.com/watch?v=Uqs3suHl2Po"]OEM K20Z3 Throttlebody working on Scion FR-S - YouTube[/ame]

johan · 08-22-2015, 08:41 PM

Now I need a damned ECUTek cable so I can make sure the ECU is getting a good TPS signal.

Ultramaroon · 08-22-2015, 08:57 PM

johan · 08-22-2015, 09:25 PM

I found my OBDII Diag cable and connected it. ECU is getting TPS, not throwing any codes.... now. Do have 4 lovely fuck-your-couch permanent codes from earlier when the wiring harness was inverted and the TPS was 100% ass backwards. ECUTek will probably wipe those with an ECU flash, but yeah - that's fun.

I did some datalogs of the TPS with both the K20 and FA20 - going to analyze them and see if there's any weirdness.

....and yes, after all this - car still runs fine.

johan · 08-22-2015, 09:38 PM

Screenshots from Excel. I don't see anything concerning here... almost identical readings - well within margin of error.

OEM TB:

K20 TB:

08-22-2015, 07:58 PM	#57
Aztec Lost in the twisties Join Date: Sep 2014 Drives: 2014 BRZ Dark Gray Metallic Location: Beaverton, OR Posts: 662 Thanks: 439 Thanked 298 Times in 188 Posts Mentioned: 33 Post(s) Tagged: 2 Thread(s)	__________________ NEW CAR!🚨🏎️⛽ 2014 BRZ: Edelbrock SC, CSG ZachTune, Jackson Radiator/Oil cooler, lightweight flywheel, CNT UEL, Berk OP/FP, Ark Grip Catback, Carbon fiber Driveshaft Aztec's Build Thread

08-22-2015, 08:10 PM	#59
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	Alright, I did this - no dice. Possible we missed something? (sharpie on 1W so I don't get them mixed up) Last edited by johan; 08-22-2015 at 10:58 PM.

08-22-2015, 08:57 PM	#68
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,396 Thanks: 53,053 Thanked 37,225 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	__________________ service manuals

08-22-2015, 09:38 PM	#70
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	Screenshots from Excel. I don't see anything concerning here... almost identical readings - well within margin of error. OEM TB: K20 TB: Attached Images

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08-22-2015, 08:15 PM	#61
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	Maybe Honda's pin 1 = Subaru's pin 6 on the connector? So we have it exactly backwards?

08-22-2015, 08:39 PM	#66
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	Well.... [ame="https://www.youtube.com/watch?v=Uqs3suHl2Po"]OEM K20Z3 Throttlebody working on Scion FR-S - YouTube[/ame]

08-22-2015, 08:41 PM	#67
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	Now I need a damned ECUTek cable so I can make sure the ECU is getting a good TPS signal.

08-22-2015, 09:25 PM	#69
johan Senior Member Join Date: Aug 2014 Drives: '14 981CS, '99 NB1 Location: Oregon Posts: 1,274 Thanks: 1,234 Thanked 1,201 Times in 631 Posts Mentioned: 114 Post(s) Tagged: 2 Thread(s)	I found my OBDII Diag cable and connected it. ECU is getting TPS, not throwing any codes.... now. Do have 4 lovely fuck-your-couch permanent codes from earlier when the wiring harness was inverted and the TPS was 100% ass backwards. ECUTek will probably wipe those with an ECU flash, but yeah - that's fun. I did some datalogs of the TPS with both the K20 and FA20 - going to analyze them and see if there's any weirdness. ....and yes, after all this - car still runs fine.

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