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93 ford ranger 2.3L no fire on intake side


mataiki

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Hi, i have a new ICM, a new cranckshaft Position Sensor, a new PCM and 2 new ignition Coils.
Sometimes the front coil doesn't work, no fire on the intake side. The engine cranks and turns with only 4 plugs.
How can i check the DPI signal and the SPOUT ?
I've checked the IGN GROUND on the PCM and found 10 ohms ... I'm not sure it's normal, is it?
Thank you for your help.
 


sheltonfilms

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Only the exhaust side fires on cranking. After the RPMs reach a certain point the intake side kicks on.


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mataiki

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yes, my CKP and CID signals are OK.
 

tomw

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toenails of foothills NW of Atlanta
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lima bean
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2WD
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films was telling you the situation is normal, don't get excited that the intake spark plugs are taking a break. They are always doing that. Situation normal, go on about your business, nothing to see here, move along...
 

mataiki

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can someone telle me how to check the DPI and the SPOUT signals ?
 

sheltonfilms

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We gave you an answer as to why they don’t fire. Do you have another issue besides the spark plugs on the intake side not firing during cranking?


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mataiki

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The intake coil doesn't start working when the engine is running at high speed.(> 500 RPMs).
The intake coil doesn't recieve the correct signals to fire it.
The Check Engine light is on, but it doesn't blink when i try to get the code.
 

sheltonfilms

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mataiki said:
The intake coil doesn't start working when the engine is running at high speed.(> 500 RPMs).

The intake coil doesn't recieve the correct signals to fire it.

The Check Engine light is on, but it doesn't blink when i try to get the code.
Click to expand...


Yours have a spout jumper? If so pull it out and see if it changes.


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mataiki

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When the spout jumper is out, the engine cranks, but won't start.
 

mataiki

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I've checked the IGN GROUND on the PCM and found 10 ohms ... I'm not sure it's normal, is it?
Thank you for your help.
 

tomw

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Location
toenails of foothills NW of Atlanta
Vehicle Year
1985
Make / Model
ford
Engine Type
2.3 (4 Cylinder)
Engine Size
lima bean
Transmission
Manual
2WD / 4WD
2WD
My credo
vertical and above ground
The ECM has more than one ground connection, so measure them all for comparison. Or, report how you checked the IGN GROUND and got 10 ohms. What did you connect to what, and was your meter zeroed out to account for lead resistance?
10 seems a bit high, but you can get different readings depending on how your probes make contact(and the condition of the battery inside the meter)
tom
 
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