new here with questions

Mike Rolica mrolica at meridian-mag.com
Tue Sep 7 14:45:43 GMT 1999


Capacitor is a 1uF electrolytic tried 12v direct to 555,  the bulb was a 12
dash light and it blinks rapidly. is 30 Hz what the 165 ecm needs? for 89

> -----Original Message-----
> From:	David Cooley [SMTP:n5xmt at bellsouth.net]
> Sent:	Tuesday, September 07, 1999 9:18 AM
> To:	gmecm at efi332.eng.ohio-state.edu
> Subject:	RE: new here with questions
> 
> At 08:02 AM 9/7/1999 -0400, you wrote:
> >No All the sensors are hooked up but the only sensors that the ECM are
> using
> >is the tps and the cts.  This is how I came to the conclusion that the
> >hypertech chip, is always in limp mode.  It will not even go into
> diagnostic
> >mode.  I know it is not the ECM because when the original chip goes in,
> it
> >will go into diagnostic mode, the iac will move.  But it will not start
> with
> >the OEM chip because of that stupid VATS,  I've screwed with it all
> weekend
> >and still can't get the injectors to fire so I'm forced to run in limp
> mode
> >with the hypertech chip  (crap  @#@# to deal with too). HELP ME!!!  What
> is
> >the part number from GM for the VATS module as  The 555 timer, a 5v
> >regulator,  3.3k and 22k resistor does not work  (sending pin 3  from 555
> to
> >ecm pin B6).  I have a pulse, can see it with the test light.
> 
> Try using the 12 volts direct to power the 555, maybe the ECM needs a 12 
> volt signal.
> Also, you mentioned part of the components for the timer circuit, what 
> about the capacitors?
> Also, what kind of test light??? putting a big enough load on the 555 pin
> 3 
> (test light) can burn out the chip.
> ===========================================================
> David Cooley N5XMT Internet: N5XMT at bellsouth.net
> Packet: N5XMT at KQ4LO.#INT.NC.USA.NA T.A.P.R. Member #7068
> We are Borg... Prepare to be assimilated!
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