LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

96 z28 no start

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Old May 12, 2016 | 08:38 AM
  #31  
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Re: 96 z28 no start

"Oil pressure test gauge", one with a hose long enough to allow you to read it when the hose is screwed in. 0-100 psi range. Some just have the hose, others also have an assortment of thread adapters. You can find cheap ones for under $20. Better grade (recommended) $30-50. You may be able to borrow one at an auto parts store.

When you say "inlet", do you mean the stock location on top of the block behind the intake manifold? It's easier to use the auxiliary port above the oil filter. Shoebox's photo shows location and thread size. That's where I connect for an aftermarket oil pressure gauge in one of my dash vents.

http://shbox.com/1/aux_oil_port.jpg
Old May 12, 2016 | 09:08 AM
  #32  
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Re: 96 z28 no start

i ment the one above the oil filter
Old May 14, 2016 | 10:09 PM
  #33  
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Re: 96 z28 no start

So I got a code for maf, the car idles rough and is hard too start. I want to know what to do to see if it is the maf or something else
Old May 14, 2016 | 10:14 PM
  #34  
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Re: 96 z28 no start

Originally Posted by black96camar
So I got a code for maf, the car idles rough and is hard too start. I want to know what to do to see if it is the maf or something else
Watching live data would be the best way to see what the MAF is doing. 96-97s are prone to an intermittent power connection to the MAF at a junction in the engine harness a little ways back from the MAF. Try monitoring the pink wire going to the MAF connector with a meter while you manipulate the harness.
Old May 14, 2016 | 10:39 PM
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Re: 96 z28 no start

Alright I'll try it thanks
Old May 15, 2016 | 02:53 PM
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Re: 96 z28 no start

I checked the wires there good, I got voltage to pink one at 12 volts, I try ed running it without the maf hooked
Up and it still won't run, car won't idle at all, and won't Rev past 2500 rpms. I'm out of ideas
Old May 15, 2016 | 03:23 PM
  #37  
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Re: 96 z28 no start

Which code did you get for the MAF? There are several.
Old May 15, 2016 | 04:07 PM
  #38  
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Re: 96 z28 no start

P0100
Old May 15, 2016 | 04:34 PM
  #39  
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Re: 96 z28 no start

That's the one Shoebox responded to. Most common cause on a 96 is a problem with the pink wire, as he indicated. Next, check the black/white wire to verify there is a good ground.
Old May 16, 2016 | 07:02 PM
  #40  
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Re: 96 z28 no start

Checked the pick wire to the blk/white wire got 11 volts. I try ed running it with maf unpluged still wouldn't stay running. Also can't get it to Rev past 2.5 k
Old May 16, 2016 | 07:59 PM
  #41  
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Re: 96 z28 no start

Also to get the car to start I have to hold it at wot, and if I let of the gas it dies
Old May 17, 2016 | 11:47 AM
  #42  
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Re: 96 z28 no start

Originally Posted by black96camar
Also to get the car to start I have to hold it at wot, and if I let of the gas it dies
That means its flooding with fuel. Putting the accel pedal on the floor puts the PCM in "clear flood" mode, and it reduces fuel flow or cuts off the fuel injectors.
Old May 17, 2016 | 11:57 AM
  #43  
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Re: 96 z28 no start

So running to rich, I know there's a big tear in my intake elbow, but never had a problem with it flooding, how do I check or stop it from flooding
Old May 17, 2016 | 02:13 PM
  #44  
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Re: 96 z28 no start

IMHO, you always start by repairing the things you know need repair (like the elbow). It's the logical thing to do. Your engine relies on input from the MAF to help determine proper fueling. Why would you ignore this if you have a fueling problem?
Old May 17, 2016 | 03:50 PM
  #45  
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Re: 96 z28 no start

Been trying to find a intake elbow, in junkyard but every camaro I find in v6, just can't afford to spend a lot of money on the upgraded one.



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