Remove the spout plug from the tfi module wiring harness & try to start the engine.If the engine starts after the spout plug is removed,the pip(stator)sensor is bad.It can also be bad even if it doesn't start with the spout plug removed,but thats an easy test to do,if youve got a No Start condition present due to No Spark
The following info was taken from sbftech.com.Its the No Spark testing section of the EFI No Start thread.
"Quote" Joel 5.0
Step 1) ￼ Place ignition key in on, with the 12-vdc test light connected to a good ground, probe the (+) terminal at the coil (Red/Lt Green wire)...test light off = usually an ignition switch or 20 GA fuse link problem....test light on = next step.
Step 2) ￼ Place ignition key in on, with the 12-vdc test light connected to a good ground, probe the (-) terminal at the coil (Tan/Yellow wire)...test light off = replace coil, test light on = next step.
Step 3) ￼ Place ignition key in on, with the 12-vdc test light connected to a good ground, probe the (-) terminal at the coil (Tan/Yellow wire), rotate distributor left-right-left and check test light...test light blinks = replace coil....test light on = next step.
Step 4) ￼ Ign On, backprobe or disconnect TFI and check with test light, pin #4 (ICM Power)...test light on = next step, test light off = open problem in wiring that needs tracing and repair.
￼Step 5) ￼ Up till now the problem is either a TFI module, or a stator sensor failure. Your options are to either replace the module and check if it starts, or follow this testing procedure to rule out/id the module as the culprit, and replace the stator sensor, TFI module, or both....I usually recommend the latter one for these cases anyway..... ￼
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