Duh! Finally got Techstream to talk to the 89666-20060 JDM Celica ECU properly by entering Japan as location and allowing automatic detection. It came up as "ZZT_Celica_CURREN_2ZZ-GE" and said no faults. Reversed polarity on the TPS and got fault code P0120, which we figured proved it was working if nothing else. Otherwise no codes though, and have this issue that going WOT bogs her down. Cleaned the MAF, changed plugs, tried various intake configurations - no luck so far. Pretty sure it's running rich like Jerome suggested, just haven't hit on a cure yet.
Got a Brit instrument cluster for a manual. It has kph as an inner ring with mph on outside. Odometer is in miles though. No TRC or VSC lights any more, or SMT gear indicator.
Also got a few other bits on the way to tidy her up a bit.
Toyota MR2 Spyder 2000-2007 Convertible Top, Blue Stayfast, Glass Window. From:AUTOTOPSDIRECT.COM
HKS SLD (Speed Limit Defencer) 2000-2005 TOYOTA CELICA ALL
Toyota MR2 Spyder MR-S 2000-2005 Front Bumper Midship Runabout Blue JDM Emblem
Toyota MR2 MR-S Roadster Spyder ZZW30 Blue Wheel Center Cap set Genuine OEMParts
Mocal Large Diameter Flush Fit Fuel Filler Cap 4 Inch Diameter With Funnel Lockinghttp://www.demon-tweeks.c...h-fit-fuel-filler-caps
Carmate Toyota MR2-MRS 2000-up "MD Style" Side Skirts (Pair)
Hope that'll look OK together.
From the yanks: "You are supposed to have 2 O2 sensors with a 2ZZ swap. One is the post cat sensor that you have. The other one is the pre-cat sensor that plugs into the passenger side (right) O2 Sensor plug on the IZZ wiring harness. Most people locate this sensor after the collector but prior to the catalytic converter and have a O2 bung welded into their exhaust at that location. It is the one that samples your air/fuel mixture and allows the ECU to make adjustments (if you are using a stock Celica ECU). The post cat one goes into the plug that is behind the rear light by the expansion bottle."
And from Cap Weir: "The Pre Cat sensor needs to be 'Real'.. that is how the ECU knows how much fuel to add to the Air you put in with your Right Foot.. The Post Cat Sensor is there to see how your Cat is doing." Looks like Aussie Spyders, Celicas and Sportivos don't have post cat sensors. Spyder has two pre-cat sensors, and Celica and Sportivo just have one pre-cat sensor.
I had the 1ZZ 89645-17180 sensor in and it didn't quite run right. We swapped it for the Corolla Sportivo 89465-02090 and it runs much better. I am noticing though that the listed Celica 2ZZ sensor is 89465-20690. Listed price from Toyota is $300.00
Still not perfect though. Going to try the correct Celica before-cat sensor. EDIT: Still not quite - some other issue..
Going to the RTA Engineer tomorrow. Found the engine number. At "rear" of block right hand top of bellhousing, between linkages and exhaust header.
post edited by seasalt - 2016/03/09 15:05:00