SPONSORED LINKS

No acceleration

Tiny
TRIPZKLR88
  • MEMBER
  • 2005 SATURN VUE
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 169,000 MILES
I have very little acceleration all of the time it has the engine light on and the limp mode light on. I have replaced the throttle body sensor, the MAF, the gas pedal sensor, the PCM, crank shaft sensor, and put new plugs in. It has an eco tech. What is wrong? Is there any common issues I’m missing here? Had it read by a Mactools computer but it pulled no codes. Idles high on start shoots to 2,500 rpm's then down to 1,000 rpm's once warm and been idled settles at 1,200-1,500 rpm's.
SPONSORED LINKS
Thursday, November 21st, 2019 AT 3:36 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,701 POSTS
Hi,

Have you checked to make sure there isn't a restriction in the exhaust system? For example, a partially plugged catalytic converter? Also, if your scanner is a live data scanner, can you provide the fuel trim information? If so, let me know what the Short Term Fuel Trims are when it is at idle.

Take a look through these two links. They discuss catalytic converter symptoms and how to check one.

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Let me know.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, November 21st, 2019 AT 6:24 PM

Please login or register to post a reply.

Related Engine Low Power Content

Fix an Engine with Low Power!
VIDEO
Fix an Engine with Low Power!
Instructional repair video
Symptoms of Low Engine Power
GUIDE
Symptoms of Low Engine Power
The power your car's engine is producing is important. When you step on the gas you need your car to accelerate, mainly to keep you out of trouble when getting onto the...
VIEW MORE

Sponsored links