The Check Engine Light may illuminate accompanied by a code P0133 (bank1 O2 sensor) stored in the powertrain control module (PCM). This is commonly caused by a failed air/fuel sensor. Our technicians tell us a revised a/f senor and (PCM) software upgrade may be necessary to correct this concern.Google+
Car Problem Reports
Suzuki Forenza Check Engine Light on With Code P0133
Suzuki Forenza Problem
Average Mileage: 75,680 mi (23,000 mi - 157,000 mi)
Visitor, 2006 Suzuki Forenza, 59,000 mi
CODE P0133 CAME ON! THE CRAPPIEST CAR IVE EVER HAD! HAS TO MANY PROBLEMS, FIRST TRANSMISSION CENSOR NOW THIS!
well a had it changed the O2 Sensor, inthe light stay on next day aafter drive 30 milles
I certain believe is the PCM (Power train control module)
after replace air filter, engine oil and spark plugs
Visitor, 2006 Suzuki Forenza, 64,000 mi
this has been a problem for my car. i bought a year ago and i already had to replace my transmission and now this i bought this car at 50000m. I am very unhappy with this model.
Visitor, 2007 Suzuki Forenza
A lack of power may develop, accompanied by an illuminated Check Engine Light with fault code P2106 stored in the powertrain control module (PCM). This fault can be caused by a throttle actuator which has only limited movement. The correction for this condition includes replacing the throttle actuator and updating the PCM software.
Visitor, 2004 Suzuki Forenza, 67,837 mi
i have p0133,,, p0128
Visitor, 2008 Suzuki Forenza, 70,000 mi
ck engine light on. pedal sensor out. put new one on,problem still exists. i have stalled out in traffic while this problem exists and almost been hit three times on the open road by other drivers. suzuki will not honor it under the warranty. they wont do a recall on the part. it is a safety hazard on the road. they say it is a part of routine maintenance. someone is going to get hurt or killed by this problem.
ENGINE LIGHT STAYS ON EVERY TIME I TAKE IT TO THE DEALERSHIP FOR REPAIR I AM TOLD THAT THR ERROR CODE INDICATES O2 SENSOR IS BAD...WELL I HAD IT CHANGED
3 TIMES...STILL THE ENGINE LIGHT REAPPEARS THE NEXT
DAY OR AFTER I DRIVE IT FOR AWHILE. I NEED HELP IT
THERE MUST BE SOMETHING ELSE RELATED TO THE O2 SENSOR
THAT THE MACHANIC IS MISSING OR OVERLOOKING. IF ANYONE OUT THERE HAS SEEN THIS PROBLEM AND KNOWS AN ANSWER
PLEASE LET ME KNOW...IM GOING NUTS...THANKS
Visitor, 2007 Suzuki Forenza, 50,000 mi
CEL come on steady, car loses ability to accelerate, then CEL will blink for the remainder of the trip until after it is parked & presumably cools down. In mild temps, the CEL is not lit at ignition, but comes on after a few minutes as engine temp rises to normal range. Reads three CODEs: P0302 misfire (2nd time to mechanic to determine how & where misfire is taking place; new plugs installed; no misfire for 1 month). This car spends most of the time in parking space due to owner's illness; Second CODE:P0420 CAT efficiency below threshold; Third CODE: P0133 O2 circuit slow response [B1, S1]. Mechanic states that "this last code may be setting the other two off - could also be the PCM or it's wiring.Several TSBs on this subject." No one knows what to do. Suzuki service now performed by VW dealership 30 minutes away from my home & they're lost in the Suzuki. Only service available is at VW dealer which charges $230 to diagnose. If no diagnosis is made then there will be further charges just to diagnose. I hate this car.
Visitor, 2007 Suzuki Forenza, 140,000 mi
Lack of power, hesitation and check engine P0133 illuminated
Visitor, 2006 Suzuki Forenza, 110,000 mi
This is the second time I have this issue. The air/fuel sensor was replaced approximately 3 years ago when this care developed this loss of power issue. The check engine light comes on and the car acts as though it is stuck in 3rd gear. Very disappointed that this sensor issue keeps arising.