Questionhi thanks for that - response - it is a European RHd vehicle. so battery polarity should be negative to ground is that correct? Supplementary question is there a Relay or something that governs the ignition?
I don't have access to a workshopmanual
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The text above is a follow-up to ...
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1998 Hyundai accent - had fault battery - jump start ok from another car. Put new battery in But it won't start. changed leads and plugs still no start. It is if an immobillisor has activated but the local garage say not likely. Engine turns but does not fire. Also no smell of petrol when trying to start although plenty in vehicle. any ideas.
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If this is a U.S. model, it won't have immobilizer. If it has some sort of security system installed, check to be sure it's working properly. Also, check to make sure the battery is connected with the proper polarity and check your fuses. Installing a battery or jumper cables with reversed polarity will blow some fuses.
AnswerI have no reason to believe negative ground isn't correct. That's how the car is made for the U.S. market, and I cannot imagine Hyundai would design for different polarities in different markets.
There are several relays that are necessary for ignition to occur. Once you've covered the basics like fuses and proper battery installation, if you haven't found the problem, it's time to investigate what sort of problem you have.
Does the check engine lamp come on for at least a few seconds when you turn the key to the "on" position? If not, you've got a problem with the ECM, power to the ECM, or ECM ground.
Do you get spark? If not, you should check those things necessary for the ECM to provide spark (such as the crank sensor). I don't know the specifics as to how the immobilizer works and don't have any diagnostic information on it, but if it's on your vehicle, you should check that as well.
Do you have fuel pressure? If not, you should check for proper power and ground to the fuel pump. If you're getting proper power and ground, then you should expect that the fuel pump is the issue. If you don't have proper power and ground, you'll need to investigate the circuit for the fuel pump which is ECM controlled. If the ECM isn't operating the fuel pump, this too could go back to an immobilizer issue.
Is your camshaft timing correct? If not, the car may not start.
You can register for an account at www.hmaservice.com and see the electrical schematics for the U.S. version of your vehicle there. (The site requires Internet Explorer, and you'll probably need Adobe SVG Viewer to see the schematics.) But you'll need to keep in mind that it won't give you information about the immobilizer and some things may be a little different than what's on your car.
