I just got a 1995 blazer 4x4 with 190000 kms on it and it was running great, until the weather starting to get a little damp out, I was sitting at a stop light and starting moving and it stumbles and idle jumps up and down and whole car shakes, I get a couple hundred feet and it dies, I wait about 4 minutes and it starts again, sputtering and coughing and then its ok, not sure but it seem to start after the ses came on for a p0134, can a bad o2 sensor do this? I scanned with an autoxray 2500 and also found p0700 and p1100 codes stored, i replaced the map sensor also, could a bad coil do this? damp weather? can someone help with testing the coil???

 

in a dark area use a spray bottle with water a mist your wires and around the coil see if there is any arcing , if there is replace the wires/coil,, probably wouldnt hurt to do a tune up then.

 

Make sure the ignition switch is

OFF

1. Tag and disconnect the wires from the ignition coil.
2. Using a digital ohmmeter set on the high scale, probe the ignition coil as shown in Step 1 of the accompanying illustration.
3. The reading should be infinite. If not replace the coil.
4. Using the low scale of the ohmmeter, probe the ignition coil as shown in Step 2 of the accompanying illustration. The reading should be 0.2-0.5 ohms, if not replace the coil.
5. Using the high scale of the ohmmeter, probe the ignition coil as shown in Step 3 of the accompanying illustration. The reading should be 5k-25k ohms, if not replace the coil.
6. Reconnect the wires to the ignition coil.

 

my coil is different, i think you posted an earlier coil that is different than mine