Car won't accelerate

Asked by May 13, 2016 at 09:28 PM about the 2006 Suzuki Forenza Base

Question type: Maintenance & Repair

So I was driving through typical friday bay area traffic when I noticed my
car failed to accelerate when I stepped on the gas pedal. No matter how far
I pressed down on the gas pedal, the vehicle failed to accelerate, nor was
there an increase in RPMs. RPMs hovered around 1200, with an
occasional spike of around 18-2000. The vehicle would slowly build up
speed to about 20-25mph.

When I finally coaxed it to a stop at the house, I turned the engine off, and
turned it back on (I'm more of a tech guy, and I figured the reboot trick of
most computers was at least a worth a try). Sure enough, everything
worked fine. Or as fine as my broken car had been running. I can't say if a
check engine light came on or not, as the CEL was on previous for a failing
throttle position sensor (has it finally gone out?) and a bad break light
switch.

So, my question is, what do you think is the issue?

3 Answers

1,615

Other than the problem being that the car is a Suzuki, YES it sounds like the TPS has finally kicked the bucket!

1 of 1 people found this helpful.
40

Transmission range sensor. I had the same problem for five years before I finally figured it out.

3 of 3 people found this helpful.
1,615

She's got a point-- Rebekah-- did your car have TPS CEL codes too? Tye range sensor has it's own set of codes

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