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-   -   NA6 MS2PNP 1400rpm Idle @185 CLT w/31kpa MAP (https://www.miataturbo.net/megasquirt-18/na6-ms2pnp-1400rpm-idle-%40185-clt-w-31kpa-map-104615/)

oak 02-03-2021 01:00 AM

NA6 MS2PNP 1400rpm Idle @185 CLT w/31kpa MAP
 
Third post I've made about my MS problems, but here we go... I promise I'll stop being a noob eventually... :/
https://cimg2.ibsrv.net/gimg/www.mia...4da66bb3fa.png

My Idle is at 1400rpm, I'd like it to be lower.
1400rpm idle w/185+ deg CLT and 31kpa MAP

Set up:
- MAT sensor is calibrated properly
- MAP sensor reads correctly
- Timing is on base map, yes base timing was set and tested at 10 degrees BTDC.

Fueling:
- Include AFR target is on
- EGO correction at 15%
- AFR table is stock
- VE table is stock
- No problems reaching target AFRs, even at idle

Idle specific:
- Yes, I sprayed potential vac leaks with wd40 and plugged/swapped out ports/hoses to test leaks
- Yes I checked my timing with a gun
- Yes, I'm in open loop idle
- Yes, my ICV is unplugged
- Yes, spark advance is off
- Vacuum at operating temp is 31kpa
- No surging idle, just high (idle stayed between 1377-1435rpm in log)
- My idle was right at 850rpm on stock ECU, so I really don't want to turn the idle screw if I don't absolutely have to

From what I've read, vacuum leaks and advanced timing cause high idle. I don't see any evidence of either (yes my last post said I had bad MAP numbers, but maybe moving vacuum lines around fixed that idk). Car runs great at all other rpms up to redline.

My question is, what else could case a high idle? Should I just send it and turn the screw? Pls help bro...



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