Okay, this is what I've done. I connected the scantool and disconected all the inputs. The TPS still reads 7% disconnected it also reads 7% connected even when pushing the throttle.
All others did the same thing except for the CTS. It went to -40deg like you said. But 4 sum reson the scantool is reading the spark advance at 63deg constantly even though the car isn't running and also while cranking it doesn't show the rpm's on the scanner when it normally does.
IAT stays at 61 deg even though its 40 or below in my garage.
When I turn key off it shows no data. It still has the pid's up but says "No Data Avaliable".
As far as the computer ground test I got 0.03 volts on my Fluke Meter while cranking and 0.00v not cranking using a BATTERY Ground. Using Body ground I got 0.00v non-cranking and cranking.
I dont know why I tried this but I dont understand it and if its irrelevant, then forget i mentioned it. I just didn't know if you needed to know ths info. I set my meter to ohms and touched the red lead to computer box and black to body ground directly behind it and got 1.1 ohms with no change while cranking.(seems like a lot of resistance to me seeing that the box is bolted and grounded 2 inches away.) Again I touch the red lead of the meter to the comp. box and black lead this time to BATTERY ground and RECIEVED 9.8 OHMS then while cranking it flucuated between 75 and 87.3 ohms.
As you know, I'm no expert but I've worked on my share of vehicles over the years and I know most people, mainly techs, are quick to say the ECM is the problem. But the fact is they rarely go bad. I've seen only a handfull that were actually bad and even at that most of them were repairable by replacing a prom or flashing it to reset it.(Domestic) I don't know about Imports.
But with what I have seen with this car I cant come up with any other conclusion.
I cant just go buy a comuter around here to swap it and see if its the problem then take it back if not. I have to order it from the dealer and its a non-returnable item.
I dont want to pay for something I do not need but i've got to get this car running!
Junk Yard? Or do you have a better idea? FYI I checked the injector pluse with a noid light. Not my scanner and only 2 work. Also the scanner still says "Fuel System Bank 1 Open" ---- "Fuel System Bank 2 Disabled".
I also do not understand the tranny ECU causing me to lose comm with the Engine ECU. It's not from a junkyard . It has no marks or paint on it like they usually put on them.
Could the Alarm system have anything to do with it? It is a factory alarm and says Hyundai on it but looks like it was installed non-factory. Like an aftermarket alarm with a siren under the hood and red indicator light installed on top of the steering collum pannel. Does it shut down the fuel system or just a deterrent?
Oh I did change the fuel pump and ECU relays just to make sure with no luck :-(. Please Help! And thanks for your patients and help.