Help Needed Fast!
Thread Starter
Racer
Joined: Dec 2003
Posts: 378
Likes: 0
Help Needed Fast!
Last night I just completed installing my new fuel injectors, the same ones as DarkHalo; SLP /Bosch 25lb. Anyway, I put everything back together and prep it for the start, I go to start it and still nothing happens. It turns over but doesn't stay running. But it does sound alot better trying to start before I switched out the bad injectors. The only thing left on my mind, that I haven't replaced on the fuel system is the fuel pump. I hear it turn on when I turn the keys to run, but could it be pumping weak? I really wish I could figure out what the h*** is wrong becuase I'm losing time and money! Please someone help!! Thanks.....
Things Replaced so far:
Fuel Filter
Fuel Injectors
Fuel Pressure Regulator
Things Replaced so far:
Fuel Filter
Fuel Injectors
Fuel Pressure Regulator
Melting Slicks
Joined: Oct 2000
Posts: 2,019
Likes: 2
From: Na
Re: Help Needed Fast! (-=Persephone=-)
Did you remember to plug in your MAF sensor? What about the fuse for the fuel pump? Try reseting you IAC valve and TPS sensor. Also try disconnecting the battery for a couple minutes and reconnecting it. May also be a vacuum leak. Alot of possibilities. Good luck.
[Modified by NUckINg FuTS, 3:49 PM 2/27/2004]
[Modified by NUckINg FuTS, 3:49 PM 2/27/2004]
Safety Car
Joined: Apr 2002
Posts: 3,531
Likes: 1
From: Conroe TEXAS!
Cruise-In X Veteran
Re: Help Needed Fast! (-=Persephone=-)
First thing I would have done is checked the FP with a manual guage. I'd do that before you go changing any more components of your fuel system. How do you know your problem is fuel, if you dont know if your getting adequate pressure/flow?
[Modified by LS1RS, 4:07 PM 2/27/2004]
[Modified by LS1RS, 4:10 PM 2/27/2004]
[Modified by LS1RS, 4:07 PM 2/27/2004]
[Modified by LS1RS, 4:10 PM 2/27/2004]
Safety Car
Joined: Apr 2002
Posts: 3,531
Likes: 1
From: Conroe TEXAS!
Cruise-In X Veteran
Re: Help Needed Fast! (-=Persephone=-)
When/how did this start happening?? Do you take anything major apart and put it back together?? or it just wouldnt start one day? Some details may lead to some ideas.
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Thread Starter
Racer
Joined: Dec 2003
Posts: 378
Likes: 0
Re: Help Needed Fast! (LS1RS)
About a month ago I was driving and my car just cut out and stopped running, leaving me coasting, and I'm thinking this is fun. So I do the leaky fuel injector test and then put it in the shop which told me thats what the problem was. Before the idle was really rough and wouldnt stay running. Now that ive replaced the fuel injectors, it doesnt start. I've taken off my plenum runners, and fuel rail to install the injectors but other than that, nothing major. The manual fuel pressure reading goes to about 30 and stays. Thats pretty much it as of now....
Safety Car
Joined: Apr 2002
Posts: 3,531
Likes: 1
From: Conroe TEXAS!
Cruise-In X Veteran
Re: Help Needed Fast! (-=Persephone=-)
30 seems a little low, i dont remember. If you have a manual you can look it up. Id think more like 35-40 is factory but dont quote me. I would think it would still run though, like crap, but run.
Drifting
Joined: Aug 2002
Posts: 1,475
Likes: 0
From: Speedo Indiana
Re: Help Needed Fast! (LS1RS)
Could be a bad ECU, a bad chip in the distributor, cracked distributor cap, bad coil, fouled plugs from being drenched in gas from the faulty injectors..bad fuel filter, fuel pump, bad engine ground........an electrical short.. Try unplugging the EST bypass and see if it will start and idle....if so, it's the chip inside of the distr.
Drifting
Joined: Nov 2000
Posts: 1,428
Likes: 1
From: Jacksonville FL
Re: Help Needed Fast! (Wheelman)
It may be a long shot but, unplug your MAF sensor and see if it will run with it unplugged. Mine died a couple of weeks ago and it wouldn't run with the bad one plugged in. If I unplugged it, it would run.
It is worth a try.
It is worth a try.