Discussion:
Idle surging TPS "A" voltage surging

Unit started surging slightly, with small voltage variance on "A" TPS signal (readable in control head diagnostics mode). Replaced TPS and it ran OK for a bit, then surging came back with a vengeance, with voltage at idle surging from 0.3V to 4.5V, all over the board. Multiple codes thrown. Not really a parts changer myself, but does this seem like a VCM issue or a wiring issue? Wiggled harness everywhere with no change noted.
Thanks.
  • Posted 15 Oct 2019 00:13
  • By Southernsurplus
  • joined 7 Feb'17 - 12 messages
  • Florida, United States
If you're gonna be dumb, you better be tough.
Showing items 1 - 1 of 1 results.
What unit? Model number at least. Most likely is computer but they typically hold up well. Any chance it was introduced to static? Are you sure your 02 sensor aint giving mixed signal?
  • Posted 15 Oct 2019 22:55
  • By Goose
  • joined 9 Oct'19 - 4 messages
  • Pennsylvania, United States
Never stop trying

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Ice 28INCH-AUTO-SCRUBBER
Morgantown, Pennsylvania, United States
Used - Sale
USD8,350
SMV (Konecranes) 20-1200B
Balling, Denmark
Used - Sale
Global Industry News
edition #1259 - 4 December 2025
In this week’s Forkliftaction News , we look at the November Logistics Manager’s Index which has dropped to the lowest it has been since June 2024... Continue reading
Movers & Shakers
Michel Denis Michel Denis
President and CEO, Manitou Group
Vice president of sales, Barclay Brand Ferdon
Board chair, Australian Supply Chain & Logistics Association (ASCLA)
Strategic business development manager, Heli Materials Handling Oceania
Global Industry News
edition #1259 - 4 December 2025
In this week’s Forkliftaction News , we look at the November Logistics Manager’s Index which has dropped to the lowest it has been since June 2024... Continue reading
Fact of the week
Allodoxaphobia is rare social phobia, an intense and irrational fear of other people's opinions. It goes beyond typical social awkwardness or shyness and can significantly impact a person's life.
Latest job alerts …
Fact of the week
Allodoxaphobia is rare social phobia, an intense and irrational fear of other people's opinions. It goes beyond typical social awkwardness or shyness and can significantly impact a person's life.