91 CRX HF w/ D16A6 swap, PM5 ECU - Rev limiter at 3,400 RPM & Idles at 2,000 RPM

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Old Dec 11, 2006 | 02:21 PM
  #1  
Mike Diaz's Avatar
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Default 91 CRX HF w/ D16A6 swap, PM5 ECU - Rev limiter at 3,400 RPM & Idles at 2,000 RPM

I'm having a problem with my 91 CRX. My car ran fine up until 2 weeks ago. The car stalled on me while driving, and I had some clicking going on at the main relay. I cleaned all my ground and double checked all my wiring just to be sure, it straightened out the stalling.

Now when I start the car, the car runs smooth. I get a solid check engine light, my idle is about 1900-2000 RPM, and it feels like I have a rev limiter at about 3,400 RPM. The red LED on the ECU is not blinking, but it is on.

I need to know where to start. ECU? Distributor? I'm so lost without my car, please help.

Does anybody around Ohio have a PM5 computer? My buddy runs an import junkyard and we were trying to find out what other cars came with the PM5 ECU stock.

Any help is appreciated.
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Old Dec 11, 2006 | 02:47 PM
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green91's Avatar
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Default

The problem is a pm5 is a DPFI ecu for a DX and the HF and Si (d16a6) come with MPFI stock.. you need a pm6 ecu
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Old Dec 11, 2006 | 05:22 PM
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Default Re: (green91)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by green91 &raquo;</TD></TR><TR><TD CLASS="quote">The problem is a pm5 is a DPFI ecu for a DX and the HF and Si (d16a6) come with MPFI stock.. you need a pm6 ecu</TD></TR></TABLE>


im also curious how you ran a mpfi motor with only 2 injector outputs...???

did it have any CEL's before?
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Old Dec 11, 2006 | 05:27 PM
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Default Re: (doublethink)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doublethink &raquo;</TD></TR><TR><TD CLASS="quote">


im also curious how you ran a mpfi motor with only 2 injector outputs</TD></TR></TABLE>

x2
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Old Dec 12, 2006 | 04:57 AM
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Mike Diaz's Avatar
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Default Re: (charlee)

It does still run on the PM5 ECU, and ran perfectly before I had problems.
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Old Dec 12, 2006 | 08:45 AM
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Default Re: (Mike Diaz)




its the ecu dude...if your running a d16a6 get a pm6.
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Old Dec 12, 2006 | 08:56 AM
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Default Re: (rice a roni)

listen to these guys,,get a pm6 ecu and wire it right..how you have it wired now running 4 injectors with a 2 injector ecu is "rigged" for sure..
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Old Dec 13, 2006 | 05:31 AM
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Default Re: 91 CRX HF w/ D16A6 swap, PM5 ECU - Rev limiter at 3,400 RPM & Idles at 2,000 RPM (Mike Diaz)

glowing non blinking ecu means faulty ecu...just to let you know
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Old Dec 13, 2006 | 03:16 PM
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Default Re: 91 CRX HF w/ D16A6 swap, PM5 ECU - Rev limiter at 3,400 RPM & Idles at 2,000 RPM (rice a roni)

why do all of you guys ask questions over on crx community, then when you get an answer you dont like, you come here and ask it, and you get the same answer. I guess you all dont realize, that most the people over there are here too.
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Old Dec 14, 2006 | 12:48 PM
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Mike Diaz's Avatar
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Default Re: 91 CRX HF w/ D16A6 swap, PM5 ECU - Rev limiter at 3,400 RPM & Idles at 2,000 RPM (cbp_crx)

Look at the post times. I posted both around the same time.
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