car ran fine started perfect, water pump went bad. replaced pump and tstat
car now doesnt start. all connections are connected. i have fuel pressure i have spark, car was just timed before water pump was changed out. .

 

Thats wierd, I'm in the process of changing my water pump out also, pumps out now, did you knock off the TPS or IAC plug ? or CTS ?

 

no and all of those sensors are pretty new as well under 6 months and all connected good and clean connections. im at a loss right now with this one

 

Is it possible to have knocked the timing out when loosening the pulley bolts w/ belt on ? I'm at a loss as well.

 

i went ahead and rechecked everything. and as of right now it appears i have no spark. i found a burned fused, replaced it and my dizzy. cap. rotor. wires. plugs are all new. so i went ahead and changed out the ign coil too ( why not) but im still getting no spark anymore to my plugs? ive never had to look farther back to figure this out. my bat is only a month old and good on power. where do i check next

 

New components doesn't necessarily mean working; wiring / connections / grounds also in play

read Pg 1 -6
http://easyautodiagnostics.com/gm_ic...n_module_1.php

 

i have a little exp with with testing electrical. so this is what i got. i connected my plug straight to my coil and still had no spark. i check voltage to the coil pink and white wire to neg on battery. i got 8.50 then jumped to 2.6 then to open line. and repeated that. not getting a solid 12 volt. so is there a broken line somewhere. im looking at my wiring diagram, showing that its powered through the distributor.

 

That's a fantastic article...nice work!

 

Nope.
Power to coil Pos terminal is straight from the Ign switch.
Run a temp wire direct from the Batt + terminal to + coil terminal and see if that solves the problem.
If it does,you need to check the wiring from the Ign switch or the switch itself may be kaput and only giving limited voltage out

FWIW
when checking car voltage; you put one probe ( blk ) on the batt neg or a ground like the engine block and other probe ( red ) on the wire being tested

 

check the wires on your starter some of them going to ignition should be on there

 

Just finished water pump and it fired right up, definately not related.