Locate the ruel pressure regulator on the fuel injector rail- pull the vacuum line off it and turn the key to "run" position. You may see a small geyser of gasoline from that hose connection as the fuel line pressurizes. If so- replace the regulator.
Since it is running rich, the only other possible sources for the gasoline getting into the combustion chamber without tripping an error code are leaking injectors and less likely but possible a faulty vapor seperator which would lead to a saturated carbon canister.
If the car has more than 75,000 miles or 100,000km, the injectors are due for replacement anyway.
SOURCE: I have a 2000 hyundai Sonata, 6 cylinder eng. My
The sensor is located on the left hand rear side of the block (near the bell housing). It is held in place by a 10mm bolt. It's to the right of the exhaust manifold (LH - radiator side) on the V6. Once you purchase the new sensor you'll be able to identify it on the engine. The connector to this sensor is located in the illustration.
A word to the wise... replace the O2 snsr as well.
SOURCE: Replaced 0xygen sensor in 2003 Hyundai Accent 3 Times Not Fixed!
It sounds like you have either a lean or rich condition ocurring,could be exuast leak,vac leak,leaking fuel preasure regulator,cat convertor.At this point would go to dealer for diagnosis.
SOURCE: 2002 Hyundai Accent 1.6 Check engine code
Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.Go to www.hmaservice.com and register( Vehicle by VIN). Afterward, you have access to shop manuals, service bulletins, wiring diagrams, etc. about your vehicle.
SOURCE: 2003 hyundai accent 1.6L is slow to fuel up. Then
The vapor tube is plugged with charcoal pellets from the cannister it is connected to. There are 2 clips you simply pinch on to release. Careful when you pull off the hose they will come out quickly. Crawl under the car just behind left rear wheel you will see a black box and on the right side is a small hose that is the vapor tube. I just emptied mine of all the charcoal pellets and it fills properly. I also put a small screen at the end of the hose as it goes into the box to prevent more debris from getting in. Please do not pay big bucks to fix this it is simple to remedy.
WITH MANUAL TRANSMISSION
Table 3: Using the Hi-Scan Pro in the Hyundai Diagnostic
Menus Current Data Screen
TPS (%)
0
2.4
3.9
5.9
MAF (kg/h)
9.5
19.4
28.8
43
RPM
IDLE
2000
3000
4000
Table 4: Using the Hi-Scan Pro in the OBD-II Menus Current
Data Screen
TPS (%)
0
2.4
3.9
5.9
MAF (g/h)
2.5
5.5
8
12
RPM
IDLE
2000
3000
4000
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DO U HAVE ANY EXHAUST LEAKS OR VACUUM LEAKS
I listened to the advice of fuel injector leaks. So I changed the O-rings on all four injectors. Drove around for a couple of days I have not seen the problem recur. So this seems to of worked for my problem. To change the O-rings is not for a expensive or very time-consuming.
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