Mazda Miata: Ignition system failure

On Mon, 26 Jul 2004 14:58:26 GMT, David <com> wrote:
 

I have found the unit! I had to find a pic of it from one of the
online Miata parts stores. It is the "Mitsubishi Power TR Unit".
I made resistance checks from the ignition coil to the unit just to
make sure.

At ~ 150.00 I really need to have this thing checked first. I hate
being raped for something that is probably a 555 timer and a resister
pack.

Anyone have any ideas on what to else to check?

In article <com>,
David <com> wrote:
 

Start by cleaning the major underhood ground points, on the head near
the throttle body and under the master cylinder.

--
Lanny Chambers, St. Louis, USA
'94C
the alignment page:
http://www.hummingbirds.net/alignment.html

On Mon, 26 Jul 2004 16:48:22 GMT, Lanny Chambers
<net> wrote:
 


Thanks, Lanny. I will give it a try.

I have had two Mazda dealers insist that it is built into the Ignition
coil, which is true for the 94 and higher. The third one finally
found it in some diagram and called it an "electronic ignition".
part number B61P18251. $244.15... and 2-3 days from factory.

David,

Make sure it's not your timing belt. When the belt breaks, you get no
spark because the cam isn't turning, thus not sending a signal to the
sensor and not firing the plugs. You can look through the oil filler
hole to see if the cams are turning when you crank the engine. Very,
very, very few ignition failures (and even those are often a bad ground
and not a true failure), timing belts break all the time if beyond the
change interval. Good luck with it.

Tom
92 Red

David wrote: 

Thanks! Everyone.

Cleaning the grounding... I thought was a sure thing. It looked
horrible. But noting.

Looking at the Timing Belt... This was the last thing on my list.
The belt was only a year old. Good thing for LLT warranties from
AutoZone.

No Cam movement. I can only hope it really is the timing belt.


Thanks again for everyone's help.
Now the Hard part begins. <again>.

I finished putting the timing belt in last night about 8:00PM and she
sounds great. I am starting to get good at this.

There was no LLT on the belt from autozone only (3 months). I used a
Goodyear belt this time.

Does anyone have any ideas for a better belt?