1989 Problems.

[Darrell]

My 4runner is bucking and hesitating during acceleration and at low rpms. Cruises along fine, once speed is steady.

Any ideas - spark plugs all clean, did fuel injection cleaning 5 mos ago.

Thank you,
Darrell

 

[fourwd1]

The TPS comes to mind first.

Have you checked the ECM for error codes?

 

[89runner31]

Have you replaced you fuel filter lately? mine was doing the same thing and i replaced it and it was fine. I didnt replace mine for way to long but all good.