Question about 2001 Hyundai XG300
Sorry if I upset you, it's not what I meant. The car is suffering from a P1191 and P1193 code. It won't idle or even drive. Give it gas, and it sputters to 3k max. When I wiggled conntectors and unplugged the MAF, it made this odd pop pop pop sound like 5-6 through the intake when I pushed on the brake pedal. The ONLY way I can get the car to move at all is unplugging the battery to reset the ECU, leave the MAF unplugged, then put the battery back on. It'll start, but it idles at like 2k, will still only let me rev it to 3k, and if I push the brake pedal, it drops to a normal idle. It's definately running rich this way because I can smell the gas at the muffler. Ive been told to replace everything from the TPS, APPS, to input/output speed sensors on the transmission. I just need to know for sure instead of throwing parts at it. I've read plenty of threads on the forums using 1191 and 1193 as keywords, but people either start the thread and never reply what the fix was, or after spending a few thousand at the dealership, the problem returns a week or two later. Any suggestions?
The mass air flow sensor can cause this but you have to plug the vac. port when you disconnect it, then it should run in limp in mode and should not rev up. If it revs up you have a vacuum leak somewhere try starting fluid and spray it around the intake and the gas recover tank to see if there is a leak there. the other things that can cause this is a stuck open purge valve on the charcoal canister, a intake leak or the pipes for the intake loose or cracked, also the PVC valve hose may be cracked try these first then pull the egr valve and clean the pint al that will tell you if you have a problem. since it's running rich it's the egr valve or a bad mass air flow sensor.
Posted on Jun 17, 2009
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Posted on Jan 02, 2017
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