Just Installed KB, won't start...video HELP!

97cobra5485 · 03-05-2010, 05:40 PM

Alright, i just got everything set up..and now it won't start, i took a quick video of it, it's dark out right now and i don't have another person with me to film the engine bay, so this is the best i could do as of now...It started at first, then died immediately... now it won't turn...im hoping that somebody can give me some input maybe from hearing it...

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SVTurbo 98 · 03-05-2010, 05:48 PM

check your vacuum lines....my bro-in-law put a ported eaton on his cobra and when he first when to start it, it fired up but then immediately died. After that it wouldn't start at all. It ended up being a pinched vacuum line. Good luck.

-Josh

97cobra5485 · 03-05-2010, 05:53 PM

thanks for looking at it, that'll be the first thing i check in the morning..

97cobra5485 · 03-05-2010, 07:02 PM

any other input??

97cobra5485 · 03-07-2010, 05:11 PM

got it started, but then it dies right away and it smells like gas, which makes me think it's dumping way too much fuel into it.I have an old tune on my SCT from when i had the procharger on there, but when i tried to upload the tune, it says that it's the wrong vehicle..anybody wanna help me out with this cluster****?

mwolson · 03-07-2010, 05:44 PM

If you are running 42# injectors and/or an LMAF on a stock tune, you will never get it started.

Let's go back to reviewing your whole setup.

97cobra5485 · 03-07-2010, 05:51 PM

Yea thats what i thought, my tuner said that i'd be able to drive it to the shop?? i had a hard time believing that...alright, my set up...
1.5 Kenne Bell
bosch 42lb injectors
90mm Lightening Mass Air
Walbro 255lph fuel pump
Brand New NGK Spark Plugs
Brand New Wires
That's basically it. Pretty Simple set up, or so i thought..

mwolson · 03-07-2010, 05:57 PM

Basically, the PCM will think the MAF voltage will mean that a lot less air is coming into the engine than there really is coming in. At the same time, the PCM will think there is a lot less fuel being delivered each time an injector is turned on. So the PCM will be completely confused by how much air is coming in and how much fuel is being delivered.

You need a new base tune for your setup.

97cobra5485 · 03-07-2010, 06:09 PM

i don't know if the shop that tuned my car before locked me out of my sct or what, but it's not recognizing the vehicle and won't let me load any tunes on it..i gotta stop up there tomorrow and see whats' going on with the sct

PhLoBuS · 03-07-2010, 07:37 PM

I know it sounds stupid but did you plug in your maf? I have forgotten it before.

97cobra5485 · 03-07-2010, 08:53 PM

yup, i've done that before as well..I'm pretty certain mark nailed it on the head

97cobra5485 · 03-13-2010, 02:38 PM

well i got a base tune, still doesn't start. **** this car i'm tired of throwing money at this piece of shit that won't even ****ing start. Kenne Bell prob sent me the wrong god damn parts anyway, their service sucks

mwolson · 03-13-2010, 07:46 PM

Check for spark and fuel. With a good base tune, she should start, unless you are not getting fuel of spark.

97cobra5485 · 03-14-2010, 11:49 AM

when i crank it, the voltage drops way down to 8, and it just reaks of gas after..thats sounds like a dead battery, but i just charged the thing, and it held..but something must be draining the battery right? As for the smell of gas i don't have a clue??

mwolson · 03-14-2010, 12:49 PM

Check all your fuses first.

If you don't have a fuel pressure gauge, get one. You should turn the key on to get the fuel pump to pressurize the fuel system. Without the car running, you should see 39PSI. When you turn the key off, the pressure should stay at 39 PSI for a long time, many minutes. If not, you may have one of more injectors stuck open. This might account for the gas smell.

I pull a spark plug wire off a spark plug, stick a philips screwdriver into the connector, and hold it near a ground while someone cranks fthe car. If I don't see a spark, I start looking for why.

Let us know what you learn when you try these tests.

mwolson · 03-14-2010, 12:51 PM

Another thing to try, since you are gettng a gas smell, it to floor the gas pedal when you are cranking. This will turn off the injectors, and it might flare up and may start if you are getting spark but too much fuel.

97cobra5485 · 03-14-2010, 01:00 PM

when i floor it, it will start, but then die immediatly

mwolson · 03-14-2010, 01:07 PM

Then you are getting spark. Run the fuel pressure tests.

RIO RED SNAKE · 03-14-2010, 10:33 PM

if he gets this running with the 42lb and the LMAF, he will be able to baby it to the shop with no problems??

mwolson · 03-14-2010, 10:48 PM

Quote:

Originally Posted by RIO RED SNAKE

if he gets this running with the 42lb and the LMAF, he will be able to baby it to the shop with no problems??

With a good base tune, he should be able to get it there, no problem, assuming he has no other mechanical problems.

The base tune should get it close enough to run safely, although without a lot of power. I prefer base tunes that take out about 4* of global advance to try to minimize the chances of detonation. In closed loop, the O2 sensors will keep the AF on target, but open loop (such as going WOT) is where it could get dangerous for the motor if the MAF transfer function is off (so that it goes lean). So as long as he doesn't do any WOT runs, he can probably drive it a very long way with no damage.

Of course it is pretty likely that his car has a mechanical issue that is causing it to not start. It is highly unlikely that it is the tune at this point.

RIO RED SNAKE · 03-14-2010, 11:01 PM

gotcha....good to know as i have to do this on april 3rd, ill put it in my sct the fuel injectors and the maf and baby the hell out of it there.... not hijacking this at all, but will this work for a IAT relocation mod, i want it to work right?
Remote IAC Adapter

Allows remote mounting of the Idle air control valve to ANY location. 1 tube attaches to the manifold (vacume side) the other attaches to the any location between the MAF and throttle body.
900877 $69.99

Modular Mustang Racing pic is halfway down the page, thanks for th elpe and hope you get ur car started

mwolson · 03-14-2010, 11:17 PM

Quote:

Originally Posted by RIO RED SNAKE

not hijacking this at all, but will this work for a IAT relocation mod, i want it to work right?
Remote IAC Adapter

Allows remote mounting of the Idle air control valve to ANY location. 1 tube attaches to the manifold (vacume side) the other attaches to the any location between the MAF and throttle body.
900877 $69.99

Modular Mustang Racing pic is halfway down the page, thanks for th elpe and hope you get ur car started

Sorry, I am a bit confused. Are you asking about an IAC Valve relocation or an IAT sensor relocation? Maybe you should start another thread.

RIO RED SNAKE · 03-14-2010, 11:33 PM

^^ahaah o crap, i posted the wrong thing..wow and yea i meant a IAT relocation, i had an old thread which you helped me with and had a great write up but i had a tough time following it, can you pm the basic of what i should do before i put my blower on so i can get it relocated correctly if you get time. thanks

gksingh · 03-15-2010, 12:14 AM

After you checked all the vacuum lines and everything

lets try going back to the basics first.

If you smell gas chances are you flooded the engine. Take out the plugs, crank it and get all the excess out of there.

Did you check the alternator? Try hooking up it up with a running car with jumper cables or 12v Charger if you have one.

If it runs with the cables on, you know that its the charging system, so basically the alternator isnt charging the battery properly...

97cobra5485 · 03-15-2010, 12:37 AM

thanks for all the help guys...tom morning should be fun trying all of this...So far i know that all of the vacuum lines are good...i'm going to get a fuel pressure gauge and check that first...I agree that it's not the tune, it's def. mechanical, just not sure which..it ran perfect before i put the blower on, so i'm trying to think of what could have went bad during the swap...