Mazda RX-7 Starting in the 1970s, the uniquely powered RX-7 helped put Mazda on the performance car map.

HELP!!! so close Tii problems

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Old Oct 23, 2007 | 07:32 PM
  #1  
MR_DRFT's Avatar
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Default HELP!!! so close Tii problems

i own an 86 fc, i just swapped in a 88tii. i've got a tii ECU,boost sensor, MAF, fuel pump, i put an fmic and 2.5" piping, with an hks bov. i also have an Apex'i neo AFC, and a manual boost controller with a FCD.

heres the problem, with the tii maf( the second one i've use, rebuilt from napa) it'll crank over high idle for 2-5 sec at 3k or so....then die, everytime

BUT, with the ---->NA MAF<------ it'll run, kinda wont hold its on idle but if i keep my foot on the throttle it runs super clean, when i floor it it'll rev to 4-5k with 2-5psi of boost, all the while spitting and backfiring. the rpms bounce between the 4-5k

the Air/fuel ratio gauge shows at full throttle its leaning out, but as soon as i let off it goes to stoich, then to lean

WHY WOULD IT WANT TO RUN WITH THE N/A MAF VS. THE TURBO ONE
 
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Old Oct 24, 2007 | 09:30 AM
  #2  
Mazmart Trini's Avatar
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From: Atlanta, Ga.
Default RE: HELP!!! so close Tii problems

Which harness are you using? NA or Turbo?
 
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