[MR2] 88sc No Start - Code 12 - WTB: 4agze igniter

[Donald Chalfant]

The distributor has two pickup coils.  There is a test for them in the BGB which I do not have with me at the moment.  The 4A-GZE is different from the 4A-GE. If either pickup dies, it will cause the symptoms you're experiencing.  Or if the wires to/from them have an open. 
  ----- Original Message ----- 
  From: Ted Volkman 
  To: Ray Benoit 
  Cc: MR2 List 
  Sent: Monday, April 12, 2010 3:16 PM
  Subject: Re: [MR2] 88sc No Start - Code 12 - WTB: 4agze igniter


  I'll swap out the coil wire and take a look at the distributor.

  Something I forgot to add, the tach does not move while cranking.  It
  is my understanding that the tach is driven of a signal from the
  igniter.  Can anyone confirm or deny this?

  Thanks
  ted

  On Mon, Apr 12, 2010 at 3:02 PM, Ray Benoit <spyderay at gmail.com> wrote:
  > OK. Sounds reasonable, but that doesn't mean you shouldn't still try
  > subbing the coil wire and cleaning the distributor.
  > My '91 T spent 3 days in diagnosis at a dealership (that sponsored/supported
  > a competition MR2), had all kinds of diagnostic equipment connected to it,
  > had up to 4 mechanics under the lid at once, had telephone consultation from
  > the distributors training chief, and still couldn't diagnose a bad coil wire
  > (it passed the static resistance test).
  > ray
  >
  > On Mon, Apr 12, 2010 at 2:15 PM, Ted Volkman <tvolkman at gmail.com> wrote:
  >>
  >> Cap, rotor and wires are all pretty fresh (~5k miles). I pulled the
  >> primary coil wire and both ends were clean and dry. I tested the
  >> output of the coil by hooking my timing light (inductive) to it.
  >>
  >> Thanks
  >> ted
  >>
  >> On Mon, Apr 12, 2010 at 1:16 PM, Ray Benoit <spyderay at gmail.com> wrote:
  >> > Ted,
  >> > If you can beg, borrow, or steal an oscilloscope, tracing the ignition
  >> > pulses from the ecu to the coil primary should show you exactly where
  >> > the
  >> > problem is.
  >> > Also, you didn't mention how you tested the coil output. Replacing the
  >> > coil
  >> > wire to the distributor and taking care that both terminals are clean
  >> > and
  >> > dry (as well as the distributor cap and internals) might be worth
  >> > trying.
  >> > The high voltage could be leaking to ground anywhere along this path
  >> > and
  >> > make it appear that the coil is not putting out.
  >> > Good luck.
  >> > ray
  >> >
  >> > On Sun, Apr 11, 2010 at 4:33 PM, Ted Volkman <tvolkman at gmail.com> wrote:
  >> >>
  >> >> I replaced the radiator on my 88sc and now I think I need an igniter.
  >> >> Car was running just fine. I replaced the radiator, then filled the
  >> >> cooling system at the water neck in the engine bay. I was a bit
  >> >> careless filling the water neck and doused the igniter. Now the car
  >> >> will not not start. I have fuel, but no spark, and a code 12. Code
  >> >> 12 is either the distributor, igniter, or ecu. The car cranks just
  >> >> fine, but there is no spark coming from the coil. I opened the
  >> >> igniter. It was slightly damp, but definitely not flooded. I cleaned
  >> >> the solder joints with electronic contact cleaner and the contacts on
  >> >> the connector then allowed it to dry, but still no luck.
  >> >>
  >> >> I guess my ecu could have coincidentally died while I was changing the
  >> >> radiator, but I highly doubt it. The fact that there is no spark
  >> >> coming from the coil means the problem is before the distributor,
  >> >> which leaves the igniter.
  >> >>
  >> >> So, does anyone have an igniter they would be willing to part with?
  >> >> Part # on the igniter is 89620-12270. Part # on the igniter and coil
  >> >> assembly is 19070-15120. FYI, this igniter and coil were also used on
  >> >> 88-89 V6 4runners.
  >> >>
  >> >> Or if anyone has any other ideas/ suggestions, I'd love to hear them,
  >> >> but I'm pretty sure it is the igniter.
  >> >>
  >> >> Thanks
  >> >> --
  >> >> ted
  >> >> 02 is300 L-tuned, 5 speed
  >> >> 94t supra 6 speed, 67mm, aem
  >> >> 93t mr2 gen3, t3/t4, 264s, aem
  >> >> 88sc mr2
  >> >> 98 honda vfr800
  >> >>
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  >> >
  >> >
  >
  >

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