Question about 1998 Hyundai Elantra
No spark to plugs Fuel pump works and pressure is high Cam position sensor changed. original had burn mark. No signal to coil pack. Not sure if crank position sensor is working. Auto computer taken from vehicle and tested in another elantra. Computer starts test vehicle. Test vehicle revs out clean and drives without issue. Not sure if info provides sufficient base to suggest possible way forward but would greatly appreciate any and all assistance.
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Posted on Jan 02, 2017
I had this problem on my 2001 accent too. It turned out to be the front O2 sensor. Try disconnecting that by the exhaust manifold. If it starts right up that's your problem
Posted on Dec 17, 2008
it is very easy to change the oil put the car on ramps secure the back end look for the drain plug underneath the engine make sure you have the right size wrench and when you remove the plug also check the gasket on the plug to make sure it is not cracked you will also need an oil filter wrench and my other suggestion to you is to go to autozone to see if they have a Haynes repair manual for your car and if they don't see if they can order you one in the mean time they can also print you off a diagram of how to change the oil in you car safely
Posted on Jan 20, 2009
OBD II connector troubleshooting 101
I had the same problem with my 2000 Elantra. the OBD II connector pins get squished and won't make cantact with the scan tool, therefore no connection. the solution is to bend the pins back so they will connect to the scan tool.
FIRST! check your lighter and radio fuses (which you have already done). If possible, make sure your scan tool is working properly, try it on another car. If it is functioning properly, remove the 2 screws holding the obd II connector to the dash. Look for obvious signs of corrosion, damage, or stuff that shouln't be in the connector (rocks, gum, etc.) clean the connector with a good electronics cleaner (I use the CRC stuff), you can usually find it at you local parts store, radio shack, or even wal mart. hose down the inside of the connector thouroughly and allow time to dry.
check for voltage between 4 (gnd) & 16 (+vcc) then 5(gnd) and 16(+vcc) with the ignition on the voltage should be between 12v-16v (these pins may be different on other cars, look for an OBD II connector pinout diagram if your car is different). If this voltage is not present at either pin, the problem is not the connector. check your fuses and wiring. if this voltage is present at both pins continue.
Here's what I did. with the connector free from the dash, you can see the back of the connector where the wires enter the connector. on either side of the connector there may be a white clip. pop both of them off. you should be able to push a small screwdriver or pick in that space to pull the pins back out towards the outside of the connector. do one at a time so you can tell if the pin has moved back out into position. do this for all of the pins. Try to connect. if still no luck try again to push out the pins and reconnect.
If your connection is restored, replace the clips, screw it back into the dash. Return your car to the lousy DMV where they will proceed to tell you something else is wrong which they neglected to tell you on your first 10 visits!! :-)
Stuff thats good to know:
some auto parts stores will connect their OBD II scan tool to you car for free. auto zone is one place
some times the computer will need to reset to restore a connection to the scan tool. to do this simply cycle the ignition off (wait a few seconds) then on again.
online auction places are a excellent resource for USB to OBD II connectors to connect your laptop to your car. there is lots of OBD II diagnostic freeware out there to go with your newly purchased connector.
Posted on Feb 06, 2009
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