NoPistons -Mazda Rx7 & Rx8 Rotary Forum
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NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   Update on my crapass T2 (https://www.nopistons.com/2nd-generation-specific-17/update-my-crapass-t2-4371/)

13BAce 08-11-2002 08:53 PM
Originally Posted by wankel_dreams' date='Aug 11 2002, 05:35 PM
ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Yeah, have you tried running without the FCD?

OKIERX-7 08-11-2002 10:08 PM
Originally Posted by wankel_dreams' date='Aug 11 2002, 07:35 PM
ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Good point. But, yeah, I've tried it both ways. I've also reset the ECU countless times.

13BAce 08-11-2002 10:41 PM
Originally Posted by OKIERX-7' date='Aug 11 2002, 08:08 PM
[quote name='wankel_dreams' date='Aug 11 2002, 07:35 PM']ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Good point. But, yeah, I've tried it both ways. I've also reset the ECU countless times.[/quote]

You tested the pressure sensor, right?

OKIERX-7 08-12-2002 07:45 AM
Originally Posted by 13BAce' date='Aug 11 2002, 10:41 PM
[quote name='OKIERX-7' date='Aug 11 2002, 08:08 PM'][quote name='wankel_dreams' date='Aug 11 2002, 07:35 PM']ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Good point. But, yeah, I've tried it both ways. I've also reset the ECU countless times.[/quote]

You tested the pressure sensor, right?[/quote]

yeah, the pressure sensor results came out alright

13BAce 08-12-2002 12:10 PM
Originally Posted by OKIERX-7' date='Aug 12 2002, 05:45 AM
[quote name='13BAce' date='Aug 11 2002, 10:41 PM'][quote name='OKIERX-7' date='Aug 11 2002, 08:08 PM'][quote name='wankel_dreams' date='Aug 11 2002, 07:35 PM']ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Good point. But, yeah, I've tried it both ways. I've also reset the ECU countless times.[/quote]

You tested the pressure sensor, right?[/quote]

yeah, the pressure sensor results came out alright[/quote]

So all of the injector connections are good? How are the injectors?

OKIERX-7 08-12-2002 02:00 PM
Originally Posted by 13BAce' date='Aug 12 2002, 12:10 PM
[quote name='OKIERX-7' date='Aug 12 2002, 05:45 AM'][quote name='13BAce' date='Aug 11 2002, 10:41 PM'][quote name='OKIERX-7' date='Aug 11 2002, 08:08 PM'][quote name='wankel_dreams' date='Aug 11 2002, 07:35 PM']ok. i could just be spouting nonsense here..... but are you sure your FCD is working correctly? doesn't the ECU cut fuel to the rear rotor in overboost situations? maybe the ECU thinks boost is too high?
Good point. But, yeah, I've tried it both ways. I've also reset the ECU countless times.[/quote]

You tested the pressure sensor, right?[/quote]

yeah, the pressure sensor results came out alright[/quote]

So all of the injector connections are good? How are the injectors?[/quote]

Well, the injectors were cleaned about a month ago. The shop that did the cleaning said they were good. Plus, I've switched the rear injectors to the front rotor and they worked fine while the front injectors did not work once they were installed on the rear rotor.



The injector connectors look good, but even so I pulled the harness and tested the resistance from the injector connectors to the ECU connections. The DMM read about .5 ohms, nothing to worry about I figure. i've even gone as far to check the resistance on the injectors just to make sure they were the proper impedance.



I'm sure you guys remember, I also did a complete check of all the fuel lines/pressure, and I've been through about 3 fuel pumps now to make sure that wasn't the problem.



I tried to test all the little stuff before I looked at the ECU, thats the only thing left that I'm unsure of now. I'll probably do some more fiddling later tonight, though. :unsure:

rotorhad 08-14-2002 03:37 PM
Damn Mike... have you checked out that crazy Knight Sports FCD yet? lol



Cars still not running right, huh? Damn

j9fd3s 08-14-2002 04:15 PM
the na ecu is only different by 2 pins. it also has a different pressure sensor. if it was my car i would plug in the na ecu and see if you have fuel at the rear rotor



mike

OKIERX-7 08-14-2002 05:02 PM
Originally Posted by rotorhad' date='Aug 14 2002, 03:37 PM
Damn Mike... have you checked out that crazy Knight Sports FCD yet? lol



Cars still not running right, huh? Damn
hey keith, I pm'ed you the other day



That FCD is permanently off the car now. I think thats what caused this whole mess.



I'd plug the NA ECU in but I don't have one anymore :(

j9fd3s 08-14-2002 05:32 PM
ok does the injector have 12v on one of the pins? the injectors all get power and the ecu switches the ground.



mike


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