i had just put in my new system today, deck, speakers and sub. and as i was doing this project i would start the car to make sure each speaker was working and everything was installed right well i started the car probably about 5 times that day then when i finally got all of the seats and everything back in the car wont start. it starts to turn over i can hear the fuel pump priming but it just wont kick. i sprayed starter fluid into my intake and it got a lot closer started to fire up but just would not do it. now would that be fuel injector related or could i of blown a fuse or what could be happening right now. i already tested the battery good but besides that im at a loss.

Sound like you just need to recharge the battery.

If you have been starting the car 5 times and running the system WITHOUT driving the car for an appreciable distance the battery is probably low.

How did you test the battery, it could be 12/12.5 volts OFF LOAD i.e. just sitting, system OFF but may drop much more as you crank it. This is a simple LOAD test.
See if you can connect the voltmeter across the battery terminals and observe the voltage as you crank it.
If it does drop below 9 volts as you crank it over it probably won't start and the battery needs recharging as soon as possible

Hope this helps

Alont

Not sure if it's true with your ride, but most late model cars from GM have the PCM routed through the radio. Not that it makes up any of the 'brain' of the car, but is a part of the circuit. Sort of a do-nothing link. Remove the radio, and you disable the car. Fortunately, some companies are coming out with dummy by-pass wiring to simulate an OE factory radio when an aftermarket radio is used.

Are you sure the fuel pump is priming? If the car almost starts with starting fluid, then it sounds like it's not getting fuel. Check the fuel pump fuse along with the coils and plug wires.

alont wrote:

If you have been starting the car 5 times and running the system WITHOUT driving the car for an appreciable distance the battery is probably low.

How did you test the battery, it could be 12/12.5 volts OFF LOAD i.e. just sitting, system OFF but may drop much more as you crank it. This is a simple LOAD test.
See if you can connect the voltmeter across the battery terminals and observe the voltage as you crank it.
If it does drop below 9 volts as you crank it over it probably won't start and the battery needs recharging as soon as possible

Hope this helps

i took it to autozone and had them test the battery with the load it has 10.8 volts which is good that was my first thought to test out but then again if the battery was dead the lights would be dim atleast.

J P wrote:

Are you sure the fuel pump is priming? If the car almost starts with starting fluid, then it sounds like it's not getting fuel. Check the fuel pump fuse along with the coils and plug wires.

Yeah i am sure its priming i can hear the fuel pump when i just turn the key to on. i am thinking it is a fuel problem also because when i tried cranking the car up when it would not i took the spark plugs out to see if they were atleast damp and they werent so im sure no fuel is getting to the system. i will check all of the fuses tomorrow how would i check the coil?

You have to determine if it's an ignition or fuel related problem. Good luck.

get a soda bottle , clean and dry it out real good, fill it up with gas and put a very small hole in the cap.
have an assistant get it and try to crank the car while you put a steady stream of fuel into it. if it turns over and keeps running untill you cut off its fuel supply then you know what the problem is. even if it dosent turn over then its ignition.
bolth problems are cheap and easy to fix...


good luck!!

first thing i would do, is check the fuse on the fuel pump.

if when you were checking your wiring you never actually turned the car on, but just turned it to run so the audio would come on and fuel pump and all the other bells and whistles, you may have flooded the engine.

take the fuel pump fuse out (if it is still good) and then turn the car over.

your fuel pump wont prime or come on, so the car will use what gas is already in the chambers to run. if the car runs with out the fuel pump fuse in let it run untill it shuts off. return the fuel pump fuse and then start it up.

this generally happens in the winter time (happend to me once or twice) when people push the gas as they are starting the engine.

the engine will try and sound like it wants to turn over, but it wont because there is too much fuel already in the cylanders and the fuel pump keeps spitting more in.

GM did not design our cars with a fuel pump shut off switch, so we have to do it the slightly harder way.

good luck.






Injection is nice but id rather be BLOWN!

yeah im done with this thing, i checked all the fuses 2 were blown probably from me hooking up my deck and not taking off the negative and i dont know whats going on i just tired to start it with some starter fluid and it smoked checked in the fuse box but no fuses blown so im done i think ill just take it to the damn dealership

What two fuses were blown?

ignition and cig both are replaced but still no luck i had my control from my amp hooked up to that one.

i am going to go buy an obd II reader today i heard the hand held ones are like 40 bucks also where the hell are my fuel injectors i know this seems like a stupid question, i do have the haynes manual and i cannot find the damn things i looked all over the engine and i dont see where they are connected, im hoping that i am just getting some blockage but i dont know im at my wits end (which arent that long in the first place)

is there fuel in your gas tank???

cause id feel like an idiot trying to start a car without gas.






Injection is nice but id rather be BLOWN!

yes i have a quarter of a tank give me atleast that much credit.

i just got the obd II sensor and it says there are no codes. how is there no codes if the car wont start. the check engine light its on but the obd reader says no codes i am at a complete lose and i have no idea what to do with my car.

is your car even OBDII? id laugh if it was OBDI
lol






Injection is nice but id rather be BLOWN!

yeah dude when asking for help add your make and model year it saves peeps time instead off clicking on your name lol i persume its a cavy 2002 right? You car has to run and work to run in a closed loop cycle (after warm up) to have a sensor read / or fail for the CPU to throw up BLAHHHH a code. I'm thinking maybe you tapped a wire into some where it shouldn't of been and shorted a fuse and maybe something else? If your stereo wires are still hooked up to it. its drawing the power to the stereo and not the needed wire thats causing the car not to start. The PCM / IGN fuse 10a pink / white is only go's in to the PCM and i think would be the only fault code the would tell you the PCM is not working if you had that line wired the other is IGN / FUSE 20a (Pink) which runs into the igntion control module ..1-4 coil control and 2-3 coil firing order 1-3-4-2 anyways if you tapped into this line and you have crossed wires haven't grounded a wire your fuse blew and maybe fried your ICM ? Did you take out the stereo back out ? are all the wires that are exposed taped back up? I'd put the car back the way it was before the no start.. In your hanyes manual look for chapter 12 chassis electrical systems and look for eng control system then look for the fuse box wire leads... Hope it helps

http://img86.imageshack.us/img86/4235/jim25ek.jpg

yeah its a 2002 z24 model. i do have gas in the car i assume i either hooked up a wrong wire i bought a gm harness adapter for the car before i soldered all of the stereo to the adapter. I did install the factory stereo back in and tried that also. yes tomorrow a friend of mine is coming over with his ohm meter and we are going to trace out the ignition wires from the back of the fuse box and so on and so forth. but if i cant find the problem by monday towing to the dealership. is there anyway that you know of that i could test the icm? or is that just a best guess type of thing?

when a car wont start, its usually either the battery, or the starter. did you check for voltage on the battery? I'm assuming that your new system has drawn up all the power and your battery runs off. I'm also assuming that your car works fine and running fine right b4 you work on your audio setup. That means that your coil and ignition should be fine. Try having your friend jump start your car. The engine should kick on after a few tries, if not, wait for at least 5 or 10 minutes and try turning on the engine again. Now after you got the engine running, turn on your headlights, take off the jumper cables adn see if your headlight dims after a few seconds. If the headlight dims, then its the battery that needs to be recharged. You can try buying a new battery because it will take a long while for your battery to fully charge again because your audio setup will be drawing the power and the battery won't have enough load to charge itself up.

i had the battery tested at autozone and it works fine i also tried having my friend jump my car prior to that and no luck. i blew the ignition fuse so i probably messed up the wire coming from the fuse and thats what im checking out today.

It would be best just to tell ya in the book i have the 1995-2000 cav/sun Haynes book you might have the 2001-up book there's little things that are diffrent so look for ignition system check 2.4L there's alot to check

http://img86.imageshack.us/img86/4235/jim25ek.jpg

Have you read this?

http://members.shaw.ca/johnz24/howto/index.html


Just in case it helps


Alont

well guys thanks for all the help but i finally got the cav up and running today with the new stereo in it and everything works properly. it ended up being my Ignition control module and once i changed that out it started right up but it had alot of excess fuel in the block that had to burn off but now its running like a champ and sounding sexy too. so thanks for all the tips and everything it took me all week to get that @!#$ started so thanks.

And the cigar go's to jimmaaaay! ll good to hear she's going again.. So it was cooked?

http://img86.imageshack.us/img86/4235/jim25ek.jpg

yeah it was blown up pretty good we ohmed it out and 2 of the grounds were open so it was bad very bad.