i have a 1992 camaro z28 350 TPI I just bought it ,anywaysI can drive it for about 2 hours then after like beating on it going not even that fast like 80 , it just bogs out and dies and if i step on the gas it dies even faster i've tried replacing teh thermostat and all new hoses and ive tried replacing the throttle position sensor and im running 93 gas ,im almost out of money now and ideas has anyone ever had this problem or does anyone have any ideas?

 

It could be several things, stock multec injectors, plugged cat , timing restarted, tuneup needed.

 

i forgot to mention the engines does not even get hot anymore so i dont think its overheating

 

plugged cat? that sounds possible the exhaust on this car is in shambles would that make it just die after driving it for 2 hours

 

If the engine isn't going into closed loop make sure it has a thermostat installed and that the o2 isn't lazy.

 

I replaced the thermostat

 

The dying after 2 hours sounds like injectors. Ohm them when the engine is hot. If they are stock Multecs call southbay fuel injectors and get a set of there bosch 3s 22#hr

 

Ok Will do the guy I bought it from said they were lt1 injectors is that even possible ? he probably was lying they look stock to me but ill test that for sure

 

IIRC the LT1s will fit but they are 24#hr , they are Multecs and also like to fail with ethanol fuel there coils short out. The should be oming out 16-16.5 but if they are ohmed with the engine warm and are 12 or below there is your problem.

 

Sweet ill test that and if they are bad should i put lt1 injectors back on do they even help at all? or should i put the ones for the 350 tpi ?

 

If they do test bad you should get these
http://www.southbayfuelinjectors.com...tpi-injectors/

 

It sounds heat related and fuel system related if its taking a few hours to act up.
If the injectors check of check the fuel pressure when it acts up.

 

I did the ohms test they all test 14.8 Ohms is that right what should I try next?

 

sounds like a failing pump (losing pressure as it warms up and then cutting out when you mash the gas)


connect a fuel pressure gage to the fuel rail pressure valve. start the car and see if pressure is withon specs at idle

low pressure is sign of a weak pump..

rev the engine.. pressure should remain within specs.. if pressure drops you have a bad pump.

 

Ok will do what kinda tool do i need to test it ?

 

Um...a fuel pressure test gage... and you connect to the test port on the fuel injector rail.

I thought that was pretty clear.

IF you don't want to buy one you can probably rent it from an auto parts store.


http://www.tooltopia.com/equus-3640....ricegrabber_r1

 

Could not having my temperature sensor hooked up cause this issue?

 

Could not having my temperature sensor hooked up cause this issue?