Not Starting but with an interesting problem...

[95 gsx eclipse]

I have a 95 Gsx, a few months ago this problem started slowly it would start when you pressed the gas pedal to W.O.T. and give it 5 or 10 seconds to start but now it has gotten worse no matter what i do it will not start the engine turns over and trys to start but wont UNLESS you push start it, when you do that it start and runs good Here are somethings i have checked.

Hooked Up Vacuum Gauge- Reads 0hg when cranking
made boost leak detecter- checked and fixed all leaks (just waiting on new seals for throttle shaft)
Hooked up Scanner- only code it has is P0443 which is emission and i have the new part for that
compression checked-good on all cylinders
fuel pressure checked- at 38psi when trying to start
spark checked- good spark all cylinders
Its had a full Tune-up new ngk plugs new magstar wires new pcv valve it has a aem air filter the and the oil was changed last month
It also has a new alternator a new starter and a new battery with new cables

Some Engine Info- the engine was blown when i got the car so i took it to a engine shop the does imports they rebuilt it so now it has Wiseco Pistons Eagle Connecting Rods and did the balance shaft eliminator the engine is about a year old now.

SO CAN ANYONE HELP ME FIND OUT WHY IT WONT START????

 

[wancsta]

Have you tried the crank sensor? it's a long shot since you say you have spark but maybe it's not spinning fast enough with just the starter to get a signal and the push start get's it going enough. also i'd recommend just going through all you connectors and make sure the are all snug and in place. hope that helps

edit: the starter is actually turning the engine over right?

 

[95 gsx eclipse]

yes, the starter is turning the engine,and the crank sensor I had replaced before but I will check it. Thanks for the idea.

 

[luv2rallye]

Since you push start it ok in key "On" but it doesn't start in key "Start", have you checked for proper voltage on the coil, PT, injectors, ECU, MPI relay, etc while cranking? Maybe you have a partial short dropping the voltage or the ignition switch in "Start" position has high resistance for the engine electronics, etc.

Or you have a partial short in the starter circuit or the starter is drawing excessive current dropping the whole system's voltage.

Or it may be you just have a weak battery that can't provide enough power to both the starter and engine electrical.

 

[RedTalon95]

Coolant temperature sensor?

 

[95 gsx eclipse]

I have a Optima Battery that i keep it fully charged the cable to the starter are 0 gauge wire. Actually all the battery cables are 0 gauge wire now.

 

[Colt4G63 also]

I like RedTalon95's idea. That's what I was going to say too.

 

[95 gsx eclipse]

I thought it was the coolant temp sensor to start with but i changed it first sorry i didnt put that in the orignal post.

 

[Colt4G63 also]

Ummmm... you didn't fill it with diesel did you?