lt1 problem
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lt1 problem when i start my car it it turns over and over and over and does not start until i press the gas down a little bit. then once it is started if you punch it it acts like it wants to cut off. no codes on computer except malfunction indicator lamp. btw car is a 1995 trans am lt1 only mod is moroso CAI and the intake elbow let me know if you have any suggestions
Launching!
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From: bodymore
try the starter fluid so you can possibly rule out spark
though remember sometimes starter fluid is more volatile than gasoline so it could be weak spark still
anytime my car broke down and still cranked it was ALWAYS fuel related. two pumps and the third time it was the ignition switch HOWEVER it didnt crank at all
good luck!
though remember sometimes starter fluid is more volatile than gasoline so it could be weak spark still
anytime my car broke down and still cranked it was ALWAYS fuel related. two pumps and the third time it was the ignition switch HOWEVER it didnt crank at all
good luck!
Thread Starter
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checked all vacume leaks cleaned up all of the grounds good fuel pressure. no codes still. any ideas? i can get it to start when i push the gas some but once started if im sitting there and i make it go wide open throttle it bogs down and starts to cut off unless i let off. i can gradually rev it up. let me know if you have any ideas
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From: bodymore
the spark could be weak. see how strong the spark is and the color whether its that blue we all know and love or if its a bit off color or not.
did you think to pull a plug and take a look at it?
also, what is "good" fuel pressure? what psi did you get on your gauge?
leaking injector could cause hard starts and make it not want to start until you get rid of the flooded condition
did you think to pull a plug and take a look at it?
also, what is "good" fuel pressure? what psi did you get on your gauge?
leaking injector could cause hard starts and make it not want to start until you get rid of the flooded condition
Last edited by trippinholyman; Sep 28, 2009 at 03:07 PM.
Launching!
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From: bodymore
http://shbox.com/1/4th_gen_tech2.htm...essure_testing
41-47 primed and also 41-47 at wot. at idle it can be 3-10 less.
obviously you can't get it started to test for bad fuel pump by way of wot dropoff. check your regulator vacuum line for fuel leaking into it maybe. and if you have some time check to see if any of the injectors are leaking. just pull the rail up, prime the pump by turning the key to accessory, then watch to see if fuel drips out
its important to know what your gauge read at the test port because i'm betting that somewhere your fuel is off. how long the pressure held and whether it sent the fuel back via the return line when you shut it off, etc. you could get some needle nose pliers and some cloth or something soft rubber and clamp the return lines and see if your rail and injectors will hold the pressure - if it still drops off then thats your problem somewhere in that part of the system.
41-47 primed and also 41-47 at wot. at idle it can be 3-10 less.
obviously you can't get it started to test for bad fuel pump by way of wot dropoff. check your regulator vacuum line for fuel leaking into it maybe. and if you have some time check to see if any of the injectors are leaking. just pull the rail up, prime the pump by turning the key to accessory, then watch to see if fuel drips out
its important to know what your gauge read at the test port because i'm betting that somewhere your fuel is off. how long the pressure held and whether it sent the fuel back via the return line when you shut it off, etc. you could get some needle nose pliers and some cloth or something soft rubber and clamp the return lines and see if your rail and injectors will hold the pressure - if it still drops off then thats your problem somewhere in that part of the system.
