Quote:
Originally Posted by V
well if I don't have spark, how do I know if its coil pack or cps? I read a few places that a bad cps can still test good using the ohm reading.
The coil pack or cps could be bad but without replacing one I cant know about the other.
the coil pack is 83 bucks on rockauto and the cps is 41. I may just tell my friend to get both and cross his fingers, lol.
I hate just throwing parts at something, but without ruling one, or both, out I dunno what else to try.
|
If you have a scanner with data stream, check for rpm while cranking. That will tell you if the cps is working or not.
IGNITION COIL RESISTANCE - 4.0L ENGINE
PRIMARY RESISTANCE 21-27°C (70-80°F)
0.71 - 0.88 Ohms
COIL RAIL - BLACK 4 WAY CAV CIRCUIT FUNCTION
1 K19 18GY IGNITION COIL NO. 1 DRIVER
2 A142 18DG/OR FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT
3 K17 18DB/TN IGNITION COIL NO. 2 DRIVER
4 K18 18RD/YL IGNITION COIL NO. 3 DRIVER