Danny_mx5

Update: I just received my ecu back from hydra. Turns out I burned the output for the wideband and also for tps. It's fixed now and I just got it plugged in my car and calibrated. But I'm having a bad idle problem when it starts it idles really high around 2.5k rpms then it lowers down and begins to bouce between 1300-2000 rpms.

I also ended up buying a NTK 24302 wideband after my old one fried..

Danny_mx5

I've unplugged the the wideband and the car will finally idle normal. Did I buy the wrong replacement? I bought a 24302 ntk is the 24300 ntk the right one for the hydra 2.7? I also did splice the plug off my old flyin miata sensor and soldered it to my new sensor.

vtjballeng

iTrader: (1)

It's a point of debate. Hydra ships with a 24300 version, I would replace with that. 24302 is a lower amperage pump cell and some are claiming it works. I would also crimp rather than solder. Mp 150 male terminals iirc. CONN-56260 plus CONN-56057 seals.

Danny_mx5

I went ahead and ordered the 24300 I should be receiving this week hopefully it's the right one to be able to finally drive my car correctly. Do you have a link where I could order Mp 150 male terminals iirc. CONN-56260 plus CONN-56057 seals

vtjballeng

iTrader: (1)

Google... OR
Home » Shop » Connectors / Harnesses » Delphi / Packard » Terminals » GM Delphi / Packard - Sealed Metri-Pack 150 ( Metripack ) Male Terminal ( 20 - 16 gauge )
Home » Shop » Connectors / Harnesses » Delphi / Packard » Seals / Plugs » GM Delphi / Packard - Metri-Pack 150 (Metripack) Cable Seal ( 20 - 16 gauge ), white
Home » Shop » Wideband O2 » O2 Sensors » NGK / NTK Wideband O2 Sensor ( UEGO ) for Custom Applications - NGK PN 24300
Home » Shop » Wideband O2 » O2 Sensors » NGK / NTK Wideband O2 Sensor ( UEGO ) for NGK Powerdex AFX, OEM replacement & other wideband systems - NGK PN 24302
Home » Shop » Tools » Crimp & Strip » Standard » Wide-Range Crimper - Excellent for crimping Weather-Pack ( Weatherpack ), Metri-Pack ( Metripack ), GT Style and most Terminal Types *RECOMMENDED*

Danny_mx5

I've got the new ntk 24300 on the hydra 2.7 now. Still having issues I really wish I had a haltech :/ When I have the wideband plugged in the car revs up to 3k rpms and slowly comes down to 2k rpms and jumps from 1500-2000 rpms. The wideband isn't getting hot so the heater circuit isn't on. I checked the voltage coming out of the wideband wideband positive and it's at 9.5v hydra says it should be from 9-10v but when the fans on the car turn on the voltage on the positive drops down to a 8.6v. If I have the wideband plugged in and do a voltage check the voltage is at 2.6v.

At this point I really don't know what to do!!! I'm beyond frustrated with the hydra problems.

concealer404

iTrader: (3)

If the heater circuit isn't working, check to make sure that the pins at the main harness are actually making good contact. I'm not terribly impressed with them. They may be too "compacted" to complete the circuit. If they're suspect, pull 'em back out, spread them a little, shove 'em back in.

Also double check to make sure that the wiring is correct. 2.7 SHOULD have only seen the "new style" wideband harnesses, but with the 2.5 and 2.6 there was some confusion at one point when the new wideband harness was updated. (Colors switched positions.)


I have the pinouts somewhere...

fooger03

iTrader: (2)

I believe FM made a post somewhere about adding a ground at/near the ECU. If you're seeing a voltage drop with fans on, this might be something worth checking.

Danny_mx5

I've decided I'm going to send the ecu out to flyin miata to have it tested and fixed if anything might be wrong with it. And I'm going to post it for sale anyone know how much I could get for the Hydra 2.7 with new wideband, Mazdaspeed harness, ecu mount? I'm going to switch over to a haltech sprint 1000

concealer404

iTrader: (3)

$1200ish would be my guess.

The Haltech is nice, it's what i replaced my Hydra 2.5 with on my MSM.