PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
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Old 12-21-2007, 07:19 AM
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Originally Posted by Hugger
What has changed since the last time you were able to start the car? New parts, tune changes, etc....???
I changed a tune and it would not start and so I went back to the one before that. Still did not work.
Old 12-21-2007, 07:25 AM
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Originally Posted by foff667
I think a big part of the problem is this.

a. he's using a 2 bar map sensor but using a 1 bar stock operating system without making the proper changes to do so.
b. he's trying to run SD but hasn't setup the codes correctly to do so nor has he failed the maf by setting the fail frequency table to 0

There may be other factors but those would be the two I'd deal with first.
Ok if that is the case then why did it run in its current state now. I did try to upload a 2 bar tune to it and it still would not start. That is why I went back to the current tune, that would start the car but now that won't even start it. But I will try it again and see what happens!
Old 12-21-2007, 07:45 AM
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Have you tried using a totally stock tune to just see if it will kick over? Also maybe a wire from the crank or cam sensor may be grounding on something? Bad ground on the computer side?
edit: Also, have you checked to make sure its not a mechanical failure? IE Broken pushrods, broken valve springs?
Old 12-21-2007, 07:52 AM
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Originally Posted by Jon5212
Have you tried using a totally stock tune to just see if it will kick over? Also maybe a wire from the crank or cam sensor may be grounding on something? Bad ground on the computer side?
edit: Also, have you checked to make sure its not a mechanical failure? IE Broken pushrods, broken valve springs?
Yes the valve covers have been pulled to verify that there is nothing mechanically wrong. We also did a compression test. I have had the stock tune on the pcm and no it will not start the car. They did check that cam and crank sensors with the tech 2 and the were getting signals. Cam was getting a high and low signal and the crank was giving a signal hard to explain what they were telling me about the crank signal.
Old 12-21-2007, 08:00 AM
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Safe to assume that when you tried the stock tune, you performed a full reflash, not just a calibration only flash? Also, the stock tune that you tried, is it from the same year/make as your car (as opposed to using an '02 tune on a '99)?
Old 12-21-2007, 08:15 AM
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Wild shot in the dark....no oil pressure or sending unit saying no oil pressure.
Old 12-21-2007, 09:08 AM
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did you end up changing the plugs? i had this problem
Old 12-21-2007, 09:46 AM
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I have changed them but I am going to change them again. I will see what happens after that.

When I changed my tune, yes I did a full rewrite and not a calibrate. I have never flashed any other tune to my car other then mine. So, no, there is not a 01 or 02 on my 99. Also I have unlimited 99 and do not have enough credits to do that!

I do have full oil pressure while cranking.
Old 12-21-2007, 09:51 AM
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And did i hear you right that your technicians applied a bone stock '99 tune to your PCM with a tech2 and it still did not work?
Old 12-21-2007, 10:52 AM
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I think it has something to do with the security system/vats, do you have a aftermarket alarm, One more thing, back in the day I did head gaskets on a sbc and when I installed the rockers I tighten them to much so that all the valves where open. Or mybe your pushrods are wrong.Hope this helps.
Old 12-21-2007, 11:54 AM
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I assume all fuses and relays have been checked?
Old 12-21-2007, 12:00 PM
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Originally Posted by TAQuickness
And did i hear you right that your technicians applied a bone stock '99 tune to your PCM with a tech2 and it still did not work?
Yes that is correct
Old 12-21-2007, 12:01 PM
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Originally Posted by radkon
I assume all fuses and relays have been checked?

Yes every one is brand new
Old 12-21-2007, 12:08 PM
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ignition switch? not letting it fire? my lil ole honda just had this problem and i found it to be the ignition switch.... but if you are getting spark.. then hmm so it doesnt start at all even with the gas jammed to the floor
?
Old 12-21-2007, 12:25 PM
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even with the gas jammed to the floor it still would not work. I will post the newest tune and log so you can see
Old 12-21-2007, 12:32 PM
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maN i feel your pain
Old 12-21-2007, 12:43 PM
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i had a car do this and it was a stupid wire that went to the computer on th eharness was bent in the stupid plug and was not making contact...
Old 12-21-2007, 12:52 PM
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park/neutral safety switch not connected to the shifter
Old 12-21-2007, 01:00 PM
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check the fuse for the gauge cluster on the inside passenger compartment fuse panel.

Ryan
Old 12-21-2007, 01:37 PM
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MightyMouse has a very good point haha. Sounds very plausible.


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