This is the sensor that determines if the ignition is going to set off right. If something is going wrong, it will not work correctly.
csf sensor no signal
error code p1345 reads as follows: Manufacturer Ignition System or Misfire.
Yes, a bad ignition coil / misfire will cause an unburned mixture of gas/air to go into cat converter which will than combust in it and cause damage to either catalitic converter, oxygen sensor(s) or both. J.Dropic
An intermittent crankshaft sensor will not let the engine fire the correct times. This can definitely cause a misfire for the engine.
Check Ignition Coils Check Ignition Coils
No
one or more plugs won't fire
ignition misfire
Trouble code P1320 means: Distributor Signal Interrupt
To find the misfire, check the crankshaft sensor on the 1999 suburban. Check for the proper fuel pressure, and check the ignition coils.
no
An engine computer does not cause a misfire but merely reports it. The misfire is probably caused by the ignition coil or plug wires