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I have a 1996 Toyota Corolla that has no spark. We have checked. Cap, rotor, coil, cam sensor, ignitor, all ok, tested crank sensor and it was bad so replaced it and still cranks with no spark. Checked wire that crank sensor plugs into and its got no power also. HELLPP! Were stumped now. Also checked all fuses, wires and relays. All look ok. Ugh!

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  • Cars & Trucks Master
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In most cases the crank sensor generates AC voltage when the crankshaft is moving. You would check it with a volt meter.
How did you test the crank sensor ?

Posted on May 05, 2013

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  • Rick Avery May 05, 2013

    We used a voltmeter. Replaced crank sensor but still wont fire. My friend check the plug that the sensor plugs into and there was no juice there either.

  •  Stephen
    Stephen May 05, 2013

    So you used a volt meter and the old sensor was not producing ac voltage, right ? Is the new sensor producing voltage ?

  • Rick Avery May 05, 2013

    No the old one wasnt. The new one isnt either but we checked the Ohms and it should be.

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SOURCE: 1996 Jeep Grand Cherokee No Start

i have a 1996 jeep grand cherokee and im not getting spark to the plugs.i replaced the crankshaft sensor and ignition coil already and still having problem.if i replace the camshaft sensor would that fix the problem ??? Or what should i do ???

Posted on Jul 23, 2012

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Hi my toyota corolla 2002 model heated so done the complete motor now any just swings. has a first initial spark then no sspark. Any ideas?


You treat it as if there was no spark at all. doesn't sound like the ignition coil, so it could be the ignitor (on American cars called the ignition control module, or ICM, but both are basically the coil control module-it controls the primary and secondary windings in the coil) . You can have the ignitor tested at most parts stores. If it is good, next suspect the crank position sensor. This sensor is used by the engine computer to determine spark firing and spark advance, so if bad, there won't be spark. Could be more to check, but start with those two. Usually one of them is bad, or the coil itself is bad.
Have you checked for any fault codes with a scanner?

Feb 18, 2017 | 2002 Toyota Corolla

2 Answers

What could cause a1991 suzuki samurai to have no fire from a new coil?


no spark from coil directly?
is the cam turning, is the dizzy rotor spinning. ????

check all fuses first. Ig-coil, FI and dome.
then using diagnostic jumper wire or fuse, (as approp)
crank engine look for code 41 o 42.!!!

USA cars , answers only
our cars are all EFI that year.
no engine swaps to Suzuki G16A/B sidekick or tracker engines.!
1: engine cranks
2: no spark
3: The ECu makes spark
the CMP sensor in the DIzzy , (never fails if rotor turns, does rotor turn, if not cam belt igored and now snapped.)
the cam turns. the CMP fires. the ECU takes this CMP signal
and fires the ignitor next to coil and the coil charges, and release and BAM spark.

that is it.
the ECU will tell you when the CMP dies or the Ignitor fails
why not ask it.
1: key on
2: diagnostic jumper in place (flashes 12s for ok)
3: crank engine,for 5sec, not 1 ,not 2.
3: release key not off.
4: see code 41, or 42, BINGO !@!!!!

Aug 15, 2014 | 1991 Suzuki Samurai

1 Answer

I got a code 43 what do it mean


1994 Jeep, Cherokee?

check all EFI system fuse first with a meter.

that is ASD drop out.
all jeeps from 93 to now have ASD relays.

43 code (nice checking you did) is bad spark.
when the PCM sees bad spark it then shuts every thing down

http://www.fixkick.com/Jeeps/ASD.html

cause is bad ignitor or coil.
the big v8, with the funny locking throttle body... short.
that is true if you crank for 5 full seconds.
to see if CMP sensor fails too.
cmp cam sensor is in the distributor base.
the ignitor is in the PCM, and drives the coil directly.
i presume spark is dead directly at the coil terminal
and is dead the first 2 seconds cranking. right.
takes 2 person to test spark. one at key , 1 and coil
the PCM only allows 2 seconds for spark to happen
if it fails ,it kills the ASD relay.
making trouble shooting tad hard , for those that dont know jeep ASD issues.
if the 5.2L cmp and CKP sensors work right, the PCM then creates spark
it does this via and ignitor.
the coil can be bad, as can the rotor and cap. id replace any old cap and rotor, fast. if the coil tower terminal HV. has good spark.

read failure to start test here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
chapter 8D-6

and page 8w-30-4 , coil schematic.
as you can see, the coil has 12vdc key on for 2 seconds.
cranking.
the PCM ground the minus coil pin.
this charges and fires the coil
the ignitor transistor is in the PCM on this car.
The PCM monitors this pin minus , and if it fails to pulse,
it knows the Coil is dead. and then shuts down EVERYTHING EFI wise.

that is how it works.
tricky yes,but true.



Apr 06, 2014 | 1994 Jeep Cherokee Country

1 Answer

1994 Geo Metro will not start


all spark plugs dead. and at the main coil?
in this case after fuse (test them , ones that look good can be bad)
these steps work or all EFI cars made.
first is the rotor spinning cranking, if not the cam belt snapped!
a 1 second check, do you try to run 60k mile belts 200k ?


  1. CEL lamp on? key on? no crank? y/n,, if no the ECU is dead. or lamp burned out, we fix this FIRST. for next tests.
  2. I insert the diagnostic jumper clip (paper clip)
  3. the CEL now flashes codes, write them all down.
  4. I then crank for 5 seconds. and release the key.
  5. The ECU then reports live codes. beyond above stored codes.
  6. The ECU is very good at finding bad crank or cam sensors dead or even missing pulses, 1 in 10 lost. trust it, on all cars ......
  7. if no sensor code errors or spark bad errors then do the next things.
  8. The ecu also reads back the Tacho signal and will report dead tacho, sig, the ECU creates this and is the COIL drive signal to the ignition coil via the IGNITOR device.
  9. If the ignitor dies, or the coil primary opens, (dead Ign.coil) then the ECU see this and gives you Spark fail codes, cranking only!
  10. if you get far with a dead ignition coil, the ignitor is bad or the coil assuming coil even has power 12vcd key on.
this is all in the FSM, if you read it.
as is the Ignitior tests, and the coil tests.
The FSM is an amazing thing if your read it.
buy one.

ECU = engine brain, or EFI brain
EFI = eletronic fuel injection
CEL is the check engine light also called SES or MIL.
your ECU is OBD1 and no scan tool works .
only the winky blinky light.

Mar 04, 2014 | 1994 Geo Metro

1 Answer

Car will crank there is no spark have replaced coil and condenser


Test the ignition system output, ignition systems can vary in configuration but operate on the same principal. Ignition systems can consist of a coil, pick up coil, crank angle sensor, cam angle sensor, spark plugs, spark plug wires, distributor cap, ignition rotor and a distributor and any variations of these components. An ignition coil is a voltage stepper coil that transforms a low voltage (12 volts) signal into tens of thousands of volts needed to jump the gap of the spark plug.

This coil is activated by an ignition module triggered by using the camshaft/crankshaft angle sensor; timing is adjusted by the PCM (computer).This primary electrical signal is generated by the PCM which calculates spark timing by using a variety of sensors including coolant temperature, mass air flow, and oxygen sensors. Go to 2carpros.com for a video on how to check this using a 12v light tool. On the engine repair section search, type, "engine cranks but will not start." If my answer helpe you, please leve good feedback. thanks

Nov 15, 2011 | 1992 Toyota Corolla

1 Answer

No spark, 1988 Toyota Camry 3SFE 4cyl, 5 speed.


there is no crank sensor on this vehicles 2.0L. If you have power to the coil, new coil, cap and rotor try this if not done yet>>>Unplug coil power first....Try pulling off the distributor cap, and make sure the rotor is spinning with the cam...If this fails to spin, inspect the entire distributor assembly. If it passes, Inspect all the power circuit and wiring to the dist assembly, if ok possible ecu. i recommend having a mechanic check it out!! Hopefully this helps...please rate...thanks

Aug 11, 2009 | 1988 Toyota Camry

1 Answer

1994 corolla dx 1.8l automatic


Have your checked your coils? Never replace parts to try and fix a problem, Find the exact problem and fix it! No spart would be either a bad cam/crank sensor, bad coil pack or ecm fuse!

Nov 19, 2008 | 1993 Toyota Corolla

2 Answers

94 toyota camery no spark


I had the same problem recently but replacing the ignition Coil under the distributor (inside) solved the problem. Also replaced the distributor Cap and rotor at the same time.

Jul 18, 2008 | 1994 Toyota Camry

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