Recently my car has been stalling the second i turn it on. i don' know what it could be. it is a 305/TBI with an open element and no cat. otherwise it is stock. i also have been not to consistent with the octane gas i have been using i switched from super to regular then back to super. could that also be a problem? help..........

 

I don't think ur gas probably has anything to do with it unless it was REALLY bad gas. Like a station that has water and dirt in there gas. Well you have spark because the engine starts so we know its not anything from the ignition. It must be something with the fuel system maybe then. Have someone start your car and then you look at the injectors and see what they are doing. They should be spraying all the time, even if he is not accelerating. Also, if there is anyway possible, get the engine to run at normal temperture (just try starting it over and over again and let it run for as long as u can until the engine gets warm enough) and pull one of the plugs. See if your running rich or lean at all. A simpiler solution would be just to check for codes. Get a code scanner or use a paper clip (there is an article about using the paper clip on here) and see what kind of codes u get. Chances are that you have a bad sensor and it is flooding the engine with to much fuel because it can't get a reading from one of the sensors that control fuel delivery (O2,CTS,etc...) So check for codes if u can, it will help u out a bunch. The instructions will tell you which code means what and how to do it. Good luck

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

i checked my codes about a month ago and they said my o2 ciriut was bad, and also me egr valve was bad. i am going to replace the egr next week but i have no idea how to fix the o2 circiut

 

what code number was the O2 Circuit? I would make a post on the Tech board and ask how to fix that. Ask for Vadar or GMTech



------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

code 12

------------------
Steve
'88 Firebird TBI - Open Element, Cat Delete
1/4: 16.1@85

[This message has been edited by 88firebirdTBI (edited March 11, 2001).]

 

LoL, a code 12 is not a bad O2 circuit. That is a check code to make sure everything is running fine. You will always get a code 12 flashed 3 times at u in the beginning. And if u have any other codes they will flash after code 12 has come up 3 times, but if there are no more codes then code 12 will keep flashing. So there for, your car doesn't have any codes.

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

it was a code 13, my bad

 

That just means your O2 (oxegyon sensor) has gone bad. Try replacing it and see if that changes the codes. After u check for codes again though, make sure u ride around for a bit. Let the computer know there is a new one in there now. Then check for codes.

If you don't know where the oxeygon sensor is, look at your exaust manifolds (headers) on the driver side of the car. Just go down the tube that leads to under the car and u should run into a metal looking sensor sticking into the tubing. Thats your O2 sensor. All u need is a wrench to get it out. You can pick up any AC Delco O2 sensor at any parts store. Good luck and come back and tell us what happened.

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

i did replace the o2 sensor about a month ago, but the day i replaced it was the last time i checked my codes

 

Hmm, well make sure all ur connections are hooked up onto the O2 and check for codes again.

------------------
Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html