Question about 1994 Toyota Camry

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No Spark 1992 toyota camry

Resistance values:
Between coil posts(coil unconnected) = .56 ohms.
Secondary coil resistance: 3.4 Kohms

Signal Generator:
Between G+ and G- 238 ohms
Between NE+ and NE 479 ohms

Voltage values=
+12 vdc on both coil posts

Between TE1 and TE2: 7.4 VDC
Between TE2 and E1: 5 VDC

Condition: Engine died suddenly without previous symptoms.
1992 Camry with 90K miles.

Before I begin to purchase things, Is there anything else I should check. If not, is there any clue as to what it should be?

The igniter or the ECM I am sure, I just wanted to do a sanity check.
Thanks a ton,

Posted by on

  • flsflyer May 19, 2009

    thanks Frank,
    I will check this next.

  • flsflyer May 25, 2009

    Hi Frank,
    What would be my "test point" for this test?
    It looks like I can "unplug" the sensor but that location is a "one hand" only location so getting a meter on that seems too tough. In your response, it seems as though I can put a meter on the electrical output of the sensor circuit. Where can I puck that up?
    Thanks a ton,



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You should also check the crank position sensor this is what tells the ecm when to spark. this is a prox switch and when unplugged and checking ohms while cranking you should see a sqaure wave. should go from 0 ohms to infinity. when these go out you will not get any spark on any cylinder

Posted on May 19, 2009

  • jon fuller May 25, 2009

    the sensor goes directly to the ecm so it will be hard to follow the wires up to it you could just poke the ends of the test probe into the wire where you can get to it and be out of the way of anything running and have someone turn the car over but it should also throw a code to the ecm if it doesnt see anything so you could scan the computer and check that as well.



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1997 buick lesabre runs good but hard to start

Hard Start
Definition: Engine cranks OK, but does not start for a long time. Does eventually run, or may start but immediately dies.
• Refer to the Powertrain On Board Diagnostic (OBD) System Check .
• Refer to Important Preliminary Checks .
• Refer to Visual/Physical Checks .
• Search for bulletins.
• Check Engine Coolant Temperature (ECT) sensor for being shifted in value. Connect a Scan Tool and compare the Engine Coolant Temperature with the Intake Air Temperature on a cold engine. The ECT and IAT should be within ± 3°C (5°F) of each other. Check the resistance of the ECT sensor if the temperature is out of range with the IAT sensor. Refer to Temperature vs Resistance . If the ECT sensor resistance is not within the specification, refer to DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage or DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage .
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• Use a scan tool in order to check the IAC operation. Refer to Idle Air Control (IAC) System Check .
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Fuel System
• Check the fuel pump relay circuit for proper operation. Refer to Fuel Pump Electrical Circuit Diagnosis .
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Ignition System
• Check for proper ignition voltage output by using the following steps:
- Clip the spark tester J 26792 to engine ground.
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Coil Resistance
5000 - 8000 ohms (5K - 8K ohms)
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7000 ohms (7K ohms).
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1 Answer

I have a 2001 roadking police bike. it has no spark. the bike cranks fine the fuel pump works, I checked all fuesess relays. checked the ckp sensre for metal ,checked the pickup senser metal. checked

Are the plugs installed because without compression you will not get ignition/spark.

Are there any codes set???

Is the ignition fuse okay??? Is ECM fuse okay?

Of course first you need power to the coil which should be there whenever the ignition and run switches are on if so see below:

Are the plugs installed

Remove the coil. THEN set your ohmmeter scale to RX1 and place ohmmeter leads on the primary coil windings A (front of coil) to B (middle of coil), B to C (front of coil) and check for primary coil winding resistance which normal resistance range is 0.5-0.7 ohms. If primary resistance is not within this range check out test results below.

Ignition Coil Secondary Circuit Test

With the ignition coil removed from the motorcycle and the ohmmeter set to the RX1K scale place the ohmmeter leads on the secondary coil windings B (middle terminal) to

R (rear secondary terminal/socket), B to F (front secondary terminal/socket) and check for secondary coil winding resistance which normal resistance range will be 5.5-7.5K ohms. If secondary resistance is not within this range check out test results below.

Test Results

A low resistance value indicates a short in the coil winding which requires coil replacement.

A high resistance value might indicate that there is some corrosion/oxidation of the coil terminals requiring the coil terminals to be cleaned and the resistance test then repeated and if after the test is repeated the resistance is still high after the terminals were cleaned the coil must be replaced.

If there is an infinite ohms or no continuity) resistance value the coil is open and must be replaced.

If you have spark, it sounds like either the sensor in the timing cavity of the engine is bad or the electronic ignition unit is bad.

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1 Answer

Test coil pack

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1 Answer

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