[Paolo]

[quote=”Raistian77″ post=82602]

Wolvez, ohming a coil only can point to opens in the winding, due to the nature of a transformer resistance measurements are useless.

The best way to test a coil is with either a megger (very expensive HIGH current ohmmeter, kill you high) or a spark tester which will load the coil.[/quote]

It’s really useless if the system has a Distributor. If I’m not mistaken we are talking about a Distributor-less Ignition System that has One Coil Per Cylinder.]

[Paolo]

[quote=”Raistian77″ post=82602]

Wolvez, ohming a coil only can point to opens in the winding, due to the nature of a transformer resistance measurements are useless.

The best way to test a coil is with either a megger (very expensive HIGH current ohmmeter, kill you high) or a spark tester which will load the coil.[/quote]

It’s really useless if the system has a Distributor. If I’m not mistaken we are talking about a Distributor-less Ignition System that has One Coil Per Cylinder.]

[Paolo]

Yes there is a Data Port in the righht side. The CEL is caused by the ECT & maybe a leaking gas cap. I don’t think it has a VIN because it’s Japanese Version. I’m still borrowing a camera that can take good quality pictures.

[Paolo]

Yes there is a Data Port in the righht side. The CEL is caused by the ECT & maybe a leaking gas cap. I don’t think it has a VIN because it’s Japanese Version. I’m still borrowing a camera that can take good quality pictures.

[Paolo]

There are 2 extra harness unplug on the driver side that seems like from the old engine. I tried findiing and removing the dash to look for the OBD 2 port in the ashtray but I can’t find it.

[Paolo]

There are 2 extra harness unplug on the driver side that seems like from the old engine. I tried findiing and removing the dash to look for the OBD 2 port in the ashtray but I can’t find it.

[Paolo]

I’m not sure, The engine has been change 4 times already because my mother is so lazy on maintenance. The 2nd or 3rd engine valve cover is color black. I can’t find out if intake manifold was change when they replace the engine because my mother is not getting the old one.

The check Engine Light is on because of the Coolant Sensor.

[Paolo]

I’m not sure, The engine has been change 4 times already because my mother is so lazy on maintenance. The 2nd or 3rd engine valve cover is color black. I can’t find out if intake manifold was change when they replace the engine because my mother is not getting the old one.

The check Engine Light is on because of the Coolant Sensor.

[Paolo]

You just need a multimeter to check the Primary & Secondary Resistance of the coil.
Primary is 0.3 – 1.0 ohms
secondary should be between 6.5 – 11.5 ohms

Both test should be done with the IGNITION OFF
The primary is where the harness is connected. If you have a V8 connect the positive probe at the center, Left and Right are both negative. The resistance on both side should be the same.

You can check the Secondary Resistance by probing the paired cylinders where the spark plug wire is connected.

[Paolo]

You just need a multimeter to check the Primary & Secondary Resistance of the coil.
Primary is 0.3 – 1.0 ohms
secondary should be between 6.5 – 11.5 ohms

Both test should be done with the IGNITION OFF
The primary is where the harness is connected. If you have a V8 connect the positive probe at the center, Left and Right are both negative. The resistance on both side should be the same.

You can check the Secondary Resistance by probing the paired cylinders where the spark plug wire is connected.

[Paolo]

Where should this Engine Coolant Sensor connected? Computer or Fan?

[Paolo]

Where should this Engine Coolant Sensor connected? Computer or Fan?

[Paolo]

I countered this problem on my 98 F150 4×2 but only happens every time I step hard on the throttle 3-4 consecutive misfire. I solve the problem by replacing the faulty thermostat which is partially stuck at open position.

[b]Check engine light is only flashing several times but don’t stay on?
[/b]

After few months I encountered the same problem again which is cause by defective degas bottle cap.

I

[Paolo]

I countered this problem on my 98 F150 4×2 but only happens every time I step hard on the throttle 3-4 consecutive misfire. I solve the problem by replacing the faulty thermostat which is partially stuck at open position.

[b]Check engine light is only flashing several times but don’t stay on?
[/b]

After few months I encountered the same problem again which is cause by defective degas bottle cap.

I

[Author]

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