Angelduran5858

So just for a couple weeks i been trying to figure out what can possible wrong with my car its a 87 Camaro with a 305 TPI zero mods all stock with only 70,000 miles FYI. I Did about a billion 's First when i try turning it on it will stay idle for a couple seconds then shut right off even if i give it gas it will die that's what it does for most of the time if it stays on as soon as i try to put it in gear it will shut right off or idle really bad till it shuts off a few seconds later even when gas is given it will just die out. I Changed Almost every possible parts I can think of And Calibrated then AccordinglyAll Parts Are New from autozone

IAC

TPS

Mass Air Flow Sensor

Duralast Distributor(Cap,Rotor,ICM,Pick-up Coil)

Ignition Coil

Accel Wire Set (2 months old)

Alternator

Battery bought in January

New Fuel Pump Changed it 2 time just in case it was Bad with filters and strainers

Looked For Any Possible Vaccum Leaks But Their All intact

Their is all so No Check Engine Light To Top It Off

Suspecting Maybe Bad ECM??
At This Point I'm Really Bumbed Out Kinda Lost On Were To Go From Here Any Help Will Be Appreciated
Will Get A video Tomorrow Morning

87hellbird

I would have to hear it run for sure but what comes to mind would be ecm or even some bad injectors.

Angelduran5858

ok i got a video im upload it now lol
Can Injectors really cause that cuz i already have a whole set ready to be installed as well im upload a video to you tube

87hellbird

Alright attach a link of it and yes inj can choke the engine if they arent putting fuel in.

Angelduran5858

http://www.youtube.com/watch?v=rKoMf...ature=youtu.be
Sounds A bit Strange And The Engine Died Out After i Gave It gas the second time

87hellbird

It sounds like not all cylinders are running si if you have the inj I would try those! And I know its stupid but check the gas as well how long has it sat?

87hellbird

Does it ever back fire?

Angelduran5858

Really?? All wires Are Plugged in But ill Double Check Them
Yea ill check them first the gas is fresh i put it in last night
how can you tell if not all cylnders are runing?

Angelduran5858

no but it does have a lose y-pipe so it sounds a bit strange when its givin a bit of gas

87hellbird

It doesnt sound like some of them are getting gas doesnt sound like its firing on all cylinders. Or the air fuel mix is off. YOu changed the plugs with the wires as well right?

87hellbird

If its not throwing a code thats where it gets hard I wish I could see it first hand, But does it ever backfire when you hit the gas? Not release but when you hit it?

Angelduran5858

Well it it ran really good I could do burn out with a good sound and engine had no hiccups it was soild
But if a injector is bad would it throw the engine off?
But yea when I hit the gas before it would not miss now when I hit the gas in drive it dies

87hellbird

This is what I think is exactly llike yours his inj is out it doesnt sound as bad as yours but it still has that limp.

Angelduran5858

Yea well mine sound bad from the manifold but yea maybe it can be that
But can one injector or multible cause it to behave like my car does when you give t gas?

87hellbird

It becomes worse when you give it gas cause instead of missing at 800 rpm its missing at higher rpm for more misses.

Angelduran5858

So I just got done installing the new injectors(not fun) it sound good but my problem still presists like when I give it gas it ildes down put if I realese it quickly it goes back to regular idle kinda strange any ideas?

87hellbird

you have changed the plugs right?

Angelduran5858

Yes I Did But I Did And Check Just In case Something Got Moved or is off and the tps was set at 0.23 will that cause the car to act that way?

Angelduran5858

Well I just noticed that when I was adjusting the tps it has no affect on the car like if the car is on and I tand I move the TPS nothing happens to the idle

87hellbird

Ok I am currently replacing my tps on my car cuase I am having problems with it. this is what a very knowledgable guy on here told me.


Yes, if the tps doesn't read correctly at the top end of the range. Use volt meter and use paperclips or thin wire to connect to the two terminals on the tps With switch on it not running it should read close to 0 at idle and 5 volts at full throttle

It seems like the idle is right but you need to make sure the throttlr opened is right.

87hellbird

I just saw that you said you already did it so I let that be

Angelduran5858

Now im Back Were I was Car is the same with new TPS its like it doesnt read it it has voltage going to it 5V and its dead on at .54V and its like its not even their if i unplug it it has no affect on the idle checked the cable all the way to the computer and its normal?
Im Losing hope

Jcodello

With the lead disconnected from the TPS, does the lead read below .2 volt (200mV)?

Angelduran5858

With the conection off the white always has 5V. A and B have no voltage since blk is ground and blue is output but the white always has a constant 5V

Jcodello

Well I'm just reading from the book here. It says after disconnecting the tps it should display the throttle position below .2 volts.

If yes: You should prove the sensor ground circuit with a test light connected to the battery voltage if the light comes on the it says either a faulty connection or a bad tps. If the light stays off then you have a open sensor ground circuit or faulty ecm.

If no: It says tps signal circuit shorted to voltage or faulty ecm.

Angelduran5858

Sorry if it sound dumb but just want to make sure I'm doing it correctlywhat terminal should I test the whit one with 5v and also recheck my ground connection correct?

Jcodello

Install three jumper wires between the tps and the harness connector
with the ignition on and a voltmeter connected to the terminals marked A and B on the the connector (the top and middle terminals), adjust the tps, the voltage should fluctuate. If it does then its working correctly and you want to adjust the position of the tps to 0.54 to 0.56 volts and then tighten tps mounting screws to set it properly. You don't sound dumb man relax. Everybody has to learn and everyone doesn't know everything.

Angelduran5858

Well I'm able to do that but when I disconnect the TPS shouldn't that affect my idle because its like if its not their
The ground from the connector is good
But you said the their is a connection that should be .2 v when disconnected which terminal exactly is that?
Thank you guys for your help I really appreciate it

Jcodello

I think that would be the same terminals as i mentioned before. That reading would be in the position opposite of WOT (wide open throttle). I'm assuming that your tps has a 3 wire connector.

Angelduran5858

OK so I hope I have figured this out I have 2 TPS one Duralast the other is OEM from the car I had laying around in the car out of curiosity I tried it and noticed the connector stringed to go in so I pulled out the connector and the ground was bent to the side my assumption is that it created a lose contact that would touch and not touch at times very strange how the Duralast when in with no problem but when I bent the wire in a but the TPS started to work as it should put I'm buying a new connector first thing tommoro morning crossing my fingers thru the whole night!

Angelduran5858

So I Failed Again lol
it dioes the same i guess it just wants me to spend more money on her
i got a much better video
http://www.youtube.com/watch?v=44lff...ature=youtu.be

Angelduran5858

I Took My Car To A Shop Near My House And They Put It Threw The Scanner The Only Thing That Came Up Was The TPS Was bad I Bought A Better Quality One Ac Delco
But Now The Car Does The Same Thing But Just When It wants To Could Bad Timing Cause This Because I Remember 87hellboy Said It sounds Like Its Missing?