Question about 1985 Mazda RX-7

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Mazda rx7 motor won`t run unless i get the spark from the lead coil to jump 10mm to plug wire.....ps series2 electronic dizzy.i have changed high tension leads coils dizzy cap and rotor button......thanks herman.

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  • hermanmyles Jun 01, 2009

    thanks for the advise ...i have fitted two new ignition modules....problem is still there....could the pickup coil be faulty?

  • hermanmyles Jun 02, 2009

    thanks mate did what you said....changed the plugs .......the rotary is rotating so so gooooood thanks...... herman

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Not real sure by your discription what the problem is. However, there are two ignition boxes mounted on side of distributor (one for leading and one for trailing) You may want to try swapping the plugs to the boxes and if it runs you have a bad box. I would guess the leading box.

Posted on May 28, 2009

  • howeracer Jun 01, 2009

    are both coils good and do you have the leading and trailing plugs hooked to correct ports on distributor. and have you checked timing. it could be a bad pickup.

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1 Answer

What does it mean if a ce lancer 4g15 motor runs but when you take spark plug off the first cylinder it does change revs its like its driving on 3 cylinders but spark leads and plugs new dizzy new and


Try pulling #1 plug and inspect it and see if it looks like other plugs ,is there ANY chance you mixed up wires when you changed them ? that would cause problems ,,my question WHAT'S a dizzy ?is it a high millage car could be timing and or timing belt .

Aug 28, 2014 | Cars & Trucks

1 Answer

How to replace a1985 rx7 antenna


you have to remove the tail light assemble to get the antenna and motor out. Remove the 10mm nuts and unplug the harness from the lamp assembly. Carefully remove the assembly, to save the seal. It has to slide to the outside a little to clear the two outer studs.
Remove the back and right side quarter panels. loosen two 10mm nuts for the antenna, remove the retaining ring fender; remove 10mm nuts; unplug power and antenna leads; move bottom of assembly forward to clear fender; remove through tail light hole.

May 29, 2014 | 1985 Mazda RX-7

1 Answer

Where is the ignition coil located in 1992 toyota paseo?


first off, no engine sized stated not even cylinder counts.
makes this kinda hard if we dont know the engine,huh?\
NO COUNTRY either stated.... lots of variances there.

hard for you too, it seems. 1.3L or 1.5L I4?
USA used mostly , so ill pretend it's that..... here....
1.5 L 5E-FE I4 why not test for spark and if the ECU sees spark missing it CUTS FUEL, (for safety reasons) so spark is first if engine is good, see?
so you never checked for spark on an engine before.?
the where is it question, im gobsmacked, its at the other end of the wire from each spark plug, for sure, Mr. Tesla's induction coil is there.
some hide, some inside dizzy and today you get 4 or 6 on Toys.
all this is convered in the FSM (get one) or at the the virtual FSM
called,,,,,,,,,,alldata.com (google finds it 1st hit)
so ill log in for you.
looks like engine has a DISTRUTOR>
ok if true.
then the COIL is in 1 of 2 places, connected to the center
of the distributor cap, 5 terminal or inside the dizzy
keep in mind that the early 90s was a transition era. Spark !
some had dizzy others are DIS.
DIS is 4 cop coils. one coil on top of the spark plug
here is vast photos on line, of many 5E-FE engines.

in JAPAN the engine had a DIZZY
in USA it had COPS
what you have not sure.

i read in the wiki that the 5E went to cops, in 1995 (USA)
so it has a dizzy. in the 5E.
here is a new coil. for the dizzy
the dizzy has only 4 terminals on top , that fact means it makes the
high voltage by all its self and this hidden coil
see photo

http://www.rockauto.com/catalog/moreinfo.php?pk=47723&cc=1276938

now not guessing,?
we do what.? we do tests. i bet your coil is fine.
here is a test flow>
i find spark dead on all 4 spark plugs.
i then ask the ECU to tell me why its dead, 99% of times i can
so what do i do? i connect the diagnostic jumper (OBD1 system)
i insert my paper clip jumper
then crank the engine for 5 seconds, release the key (not off)
and behold , i get CEL flash codes,
saying,,,,, bad CMP, BAD CKP
all cars up to 1996 (most) work like that, they have flash codes.

now my useless guesses.....
my guess. is ckp sensor wires fell off
the ground to the DIZZY snapped.>
?
i take a spare good spark plug , gapped to spec.
i ground the shell off the spark plug to the engine metal.
i connect the spark wire.
i then crank and see.????
see video of spark

http://www.fixkick.com/videos/FLV-all/showtime.html#sparktest

the coil can be tested by making a spark test wire, (old spark wire)
and an aligator clip, we ground the spark plug.
dizzy cap removed.
then connect the clip to the coil spring clip seen in the rock auto link above. and test coil spark,.
if all 4 spark plugs are dead and the coil is good.
99% of time its caused by
1: cam timing way off. slipped belt or chain snap
2: someone spun the dizzy willy nilly in its base.

Those are the ropes. i use.



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1 Answer

Firing order 84 madza rx7


If your tach does not work that is a symptom. Of course a timing light is most useful. If not you can coil wires (swap with known good wire) ; check ignitor,(swap trail/lead ignitor plugs at distributor) coil, check with ohm meter.
Trailing ignitors are very common failures, especially when either jump starting or being jump started when a battery is stone dead. What happens is there can be a huge power spike through the ignition system damaging the electronics in the ignitor. 90% of trailing ignitor failures happen during a jump start procedure.
At this age though, wires and coils can be suspect. My recommendation for ignition parts, Mazda Mitsubishi Cap/rotor and NGK wires and plugs. They are good enough for Mazda factory race teams and I have been using them since 72 with no ignition related failures in racing or all the street vehicles that have been maintained. Most critical is the fit of the rotor, it should be very hard to install, very tight fit. If loose the rotors have a tendency to rotate and move causing changes in timing and at worse damaging the cap and rotor.

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1 Answer

Suzuki wagon r+gl check engine light keeps flashing and wont start after battery change


the engine (there are more than one engine)
has a distributor.
"have spark at coil down to dizzy but no spark at plugs"
this can mean only 2 things.
1: spark wires are dead. all 4, kinda hard to believe huh?
2: the dizzy is way off time. so time the dizzy and now spark
lands on each wire term.
if not a dizzy engine, post exact version of engine and country.

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1 Answer

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The coils might be wire in reverse polarity. The FSM diagram shows that the B/W ground wires go to the terminals and the yellow striped wires go to the - terminals which is different than most.

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2 Answers

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1 Answer

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2 Answers

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