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Old 06-25-2008, 12:37 PM   #1 (permalink)
 
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Default Tps/ Throttle Body Problems

Please help!!! I have a 2006 Forenza. Starting at 37,000m my check engine light came on and read as the TPS or throttle position sensor. Unfortunately replacing the sensor is not possible on this model, the entire throttle body has to be replaced... It runs very rough and loud. After startup it acts as if it has timing issues and also when driving generally between 55 and 70mph. I've had the throttle body cleaned twice. After the first time, it drove smooth and quiet for about 3 weeks then the light came back on and became loud and rough again. After the second, it only lasted about a day. Has anyone else experienced any issues like these? Any suggestions?
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Old 08-25-2008, 02:04 PM   #2 (permalink)
 
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Default tps

wow Ive been the exact same problem and cant find out and the dealership said i gotta pay *) bux for a diagnostic check first but autozone said it look to be the tps...but u explaind the problem to a t.
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Old 08-25-2008, 03:08 PM   #3 (permalink)
 
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Quote:
Originally Posted by forenza24 View Post
wow Ive been the exact same problem and cant find out and the dealership said i gotta pay *) bux for a diagnostic check first but autozone said it look to be the tps...but u explaind the problem to a t.
I bought a throttle body for a '07 Reno at a salvage yard. It was very difficult to locate this part at a salvage yard, but I found one in a nearby state and had it shipped. Cost me about 100.00. It has since fixed the problem, I'm sure I will eventually need to replace this one as well due to the car not conbusting properly. At least so I've been told by a once Daewoo mechanic. Hopefully this will help. Throttle bodies are way expensive for this car They quoted me like 480.00 before labor. It was really easy to change out myself, just a couple of bolts and some hose clamps. The newest issue with my car is the strutts are out already and ripped up my brand new 90.00 tires... This car is a piece!!!! I will never ever buy another Suzuki!
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Old 08-26-2008, 03:37 AM   #4 (permalink)
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Suzuki Car Parts sells a TPS for the 06 Forenza, I dont know what installing it would involve "but they sell it so it must work" (i say that with sarcasm)

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Old 08-26-2008, 08:24 AM   #5 (permalink)
 
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They sell one that does not work on the Forenza. I bought it and went to put it on and it's a completely different part. You have to completely replace the throttle body on the '06. It's DUMB!!! The sensor they sell is like 65.00, throttle body new is like 480.00... REALLY REALLY DUMB!!!! Thanks though...
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Old 08-26-2008, 09:37 AM   #6 (permalink)
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All the new cars that are "fly by wire" and have electronic throttles service the throttle body as a unit for safety reasons.
Improper cleaning of the unit can damage it, so you can no longer poke open the throttle blade and clean it like the older style.
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Old 09-11-2008, 10:44 AM   #7 (permalink)
 
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Default TPS problem

Oh my goodness... I am having the exact same problems. My check engine light came on at 39,000 miles. After trying having the sensors cleaned, I have had both the sensor under the pedal and the throttle assembly replaced. After working for 2 weeks the problem has not only resurfaced, but is worse than ever. I am at a loss as to what to do now. The repair shop that I have been taking it to also doesn't seem to know what to do next. Has anyone been able to fix this problem for the long term?
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Old 09-11-2008, 11:33 PM   #8 (permalink)
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I have had issues with that problem on other vehicles. Factory engineers has found that the throttle position sensor have a grease issue inside when it rotates as pedal is pressed and depressed. The bad problem is that there is a limited amount available that have been rebuilt and updated as a complete unit and would offer the updated component on warranty vehicles. It would be available to everybody by 2009.
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Old 10-11-2008, 11:53 PM   #9 (permalink)
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Angry 2006 Suzuki Forenza. This car sucks.

I have the same problem with the TPS sensor on the throtle body. I currently have 50,455 miles on the car. There are actually three TPS sensors in this configuration. One attached to the gas pedal. One attached to the throtle body (defective part). And, one located inside the top of the engine block. The defective TPS sensor is removable with four screws. American Suzuki has to be a pain in the ass by selling it only as part of the entire throtle body.

To contradict what Suzuki Don stated: "All the new cars that are "fly by wire" and have electronic throttles, service the throttle body as a unit for safety reasons." ---- Maybe safety reasons to keep carb cleaner out of the hands of idiots. ---- All new cars are drive by wire but there is no reason to make it mandatory to replace the entire throtle body. It doesn't need cleaning. All the car needs is a new sensor that hasn't shorted. It's another crap GM part. You can find the TPS sensor for the 04-05 at Pep Boys and Autozone, under GM TPS sensor. American Suzuki found a way to rip owners of their cars off one more time. By not making the TPS sensor seperate, you either deal with the car driving like crap or pay almost $600 including labor and taxes to get it fixed. I called American Suzuki and explained my problem and I was told that it is considered """normal maintenance""" WTF? I thought normal maintenance was oil changes, tire rotation, belt inspection, fuel injection service and brake inspection. Once again no help from the company. We all need to ban together and start a Class Action Lawsuit against American Suzuki. Too many problems that are the owner's responsibility. Even if you haven't financed; American Suzuki won't pay for anywork on their leases or smart buy's. And, every junk yard
that I contacted said that even if they received a Suzuki, they wouldn't keep it for long. Making it alot harder to try to find a used throtle body and TPS sensor.

This car has made me so disgusted. Thanks for listening to my rant. Anyone have a solution to this problem? Someone found a magical TPS sensor that fits, for around $65? --- I pray for an answer, besides the obvious one telling me to shell out $600.
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Old 10-21-2008, 02:13 PM   #10 (permalink)
 
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Default Throttle Body and O2 sensor??

I have been having the same problem! My car (05 Forenza Wagon) feels like it is stuttering or is going to die out around 50-70 mph when I press or depress the gas pedal to slow down/speed up with traffic. The speedometer shakes back and forth rapidly also when this happens. It also has a rough idle sometimes and will randomly die at stop lights or almost die only to recover and run roughly. If it dies, it starts right back up. My engine light comes on and goes out every now and then and my mechanic said he thinks one of the O2 sensors is bad.

I had the throttle body cleaned last week and it ran smoothly for a few days, no problems at all, only to start back up again this week. The O2 sensor had to be special ordered form the dealership for $160 and is being replaced today. He also said he would clean the throttle body one more time and see if that fixes it.

Hopefully someone will figure this out and let us all know!!
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