acceleration and bad fuel economy

Asked by matt011 Nov 16, 2016 at 08:08 PM about the 2001 Saturn S-Series 4 Dr SL1 Sedan

Question type: Maintenance & Repair

hey my codes are p0172 p0420 p1133 it's gas
leaking into my vacuum hose by my air filter and I
can barely accelerate when I press on the gas all
the way it doesn't go past 50 mph and it wastes  a
ton of gas as well as heats up to halfway when at
stand still for more than 10 min

1 Answer
34,745

lrodri911 answered 7 years ago

P0172 (bank 1 rich) is caused by fuel pressure too high. Perform fuel pressure test. Leaking fuel injector(s). - Perform pressure leakdown test. Vacuum leak around the MAP sensor grommet. Oxygen sensor contamination, restricted exhaust or air intake. Fuel Vapor Canister saturated with fuel. The P0420 90% of he time is due to plugged up catalytic converter but if you want to try to replace 02 oxygen sensors first but most likely is the catalytic converter that's why you're getting the P0172 and P01133 because it can not exhaust. Need to have it scanned with live data scanner. Time for a new catalytic

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