hanomon
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Posts posted by hanomon
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Got a 94' corvette LT1 in a 75' 280 & redoing the wiring harness. Not running any emissons so we removed the EGR vacuum solenoid. However there is another vacuum solenoid on the passenger's side. The service manual says it's for canister purge? The Mitchell diagram lists it as "Evap canister purge" off the ECM's Blue clip-pin #10 dark green wire. I have it connected to the stock Datsun vacuum line to the charcoal canister from the fuel vapor collector tank. My question is; what actually triggers that solenoid or is it even necessary? Could we just remove it and run our fuel vapor canister straight into the intake manifold?
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The stock 78' 280Z fuel pump put out 45psi when we verified the output pressure for our 94' stock (24lb injectors) LT1 engine was not running so, no vac to the regulator.
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I've met the shop floor manager a few years back when I was living in Oceanside. His name is Paul Hedrech. My buddy Brian went to school with the guy, who turned us onto the shop that supplies them with their super high out put alternators 150+apms. in a very small housing. Nice engines if money i$ no object.
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I have a 94' too, Got the vats programed out with the Tuner-cat software, even picked up one of those vats by-pass modules. Mine did the same thing died after a few seconds. Turned out to be the throtle position interface module.
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Nothing better than killing an afternoon with my 24yr old son in the garage on the Mutant~Z project especially now since he's moved out. I've got a core group of gearheads that are very knowledgeable. You guys here have been a great source of help too.
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Mutant Z
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Hot-tank $50.00 or less.
Some of them have gone by the way side due to increased operating cost.
What they do instead is put it into a high pressure booth and spray it.
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Yes, the ignition switch was in fact on, fuel pump kicked on for prime then off a few seconds later then I selected the "Read PCM" from the tool-bar.
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Got my PCM back from being reprogramed, set-up the tunercat program established com-link (no problem) click on toolbar, select "Read PCM" from the menu options (that was the only option available/highlited) It began the process with the warning Not to interupt the program, after approx 30-45 sec. pause, the Red circle w/white "X" and the "Can not read PCM"
So, is my gut correct in assuming that I may have purchased a defective unit to begin with? Dose anyone out there know of a way to test the health of the PCM before I cough-up $117. for the new unit? GM part No.16181333
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Looks great. You mentioned the approach angle, may I suggest (if you need to extract/reinstal) raising the rear of the car. That made it so much easier!
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Like the legendary VIN-No. fairy, I've herd tales told of smog pirates, who would pass a Shwinn (for a King's ransom).
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A note of caution when changing refrigerants from R-12 to 134-A.
I've read where systems that aren't THOROUGHLY flushed prior to introducing the new liquid, are prone to compressor pump seal failure due to a suspected incompatibility between the chemicals.
I'm no chemist so, I can't get into detail however, reports are common of compressors giving out after approx 1yr of the change over, in systems that wern't completly cleansed.
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Venting the hood will also help let off some heat.
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There should be a NPT plug (3/8" or 1/2") just above the oil filter. I believe it's for the oil cooler option.
Cutting a large hole into the fire wall, may compromise the structrual integrity.
The fire wall adds alot of strength in that area. In fact, I welded up some of the (factory stamped) holes there.
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Yes, thanks Tim. Good to meet some new hybridzers. Nice to see some familiar folks again.
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I've the got stock 280 AC with (GM) compressor. Mounted on the upper drivers side with a custom bracket, alt is on pass side, two idlers from a Mitsubishi Eclipse, no PS and it uses the stock GM LT-1 drive belt.
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Is the fan pulling air through the rad? Reason I ask, is if the leads are crossed it will rotate in the oposite direction.
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So, what I get is that machining or cylinder honeing without a torque plate to simulate exactly where the block will be when the heads are on, can, may & or will cause deviation from true spec?
This is some good info!
Could a bore gauge help to reveal this condition prior to final assembly?
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Looks like he could be a SD Chargers fan by all the lightning bolts.
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Congrats wheelman!
I too am reaching the end of my Jackstand Racing membership.
All wiring GM & Datsun has been modified.
Am in the process of connecting.
It won't be long now.
Again, good job.
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Congrats on the 400ml road trip/move.
Have you determined the root cause of your 80mph freeway power loss?
And if so, what was the corrective action?
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Yea, Popeye stole that quote from the apostle Paul. When he wrote in first Corinthians, chapter 15, verse:10 I am what I am.
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I don't know that our lives are measured so much by what we achieve, but rather by who we have afected positively. Not by what we acomplish but by who's lives we have touched.
Mr Kelly, I have yet to meet you personally however, let me say that you sir, have moved me with your depth and insight.
Way beyond all of our automotive intrists lies a much greater call we all must answer or ignore. Reaping the rewards or feeling the emptiness of not responding.
We know in the deepest corners of our being what is good, right and true, however, while we learn to breathe, we have all sadly learned how not to listen to that which calls us twoards being much, much more.
Yeh, it's just a car I'm building but then again, I'm just passin' through.
As for what I have done? IMO diddly.
Perhaps after I'm gone, my family may have a different answer to this thought provoking question.
Mahalo/Thank you for asking.
Warmest Aloha to you my friend!
Hano
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Justin,
What year model harness do you have?
Will you be keeping all emissions?
Auto or man trans? Cruse or No, AC or No?
OEM or aftermarket gauges?
Depending on what you want will determine how much of the wires will be used.
I've gone through every wire one by one on my 94' LT-1 reducing the ammount of wires by 25%.
I could send you the diagrams but only for a 94' Corvette vin-p.
I bought the factory Service Manuals (highly recommend) from the Chevy dealer where my Son worked. They are year and model specific. I paid $94.00 a year ago.
I'm sure if you were to aquire a set, most of what you'll need to know can be found there for your particular yr. A very wise investment.
To answer a few of your questions here now;
ECT=engine coolant temp
DLC=data link conector
TP=throttle position
IAT=intake air temp
IAC=idle air control
HO2S=hot oxygen sensor
As for banks 1 and 2 are pre and post Cats, or perhaps even and odd cyl.
I don't have the books in front of me (in the office) and my memory fails.
I may provide more info when I get home and refer to what I have.
In the mean time...
Hope this helps.
Hano
LT1 vacuum solenoids?
in Gen I & II Chevy V8 Tech Board
Posted
Found a emissions diagram on shbox.com for that solenoid, so looks like we're ok with the set up as is.