Ford KA won't start (DTC's in thread)
Discussion
Thought I would consult the hive mind.
Ford KA, has been sat up for a year I would say, fresh battery and it wont fire. Cranks well and I have a good spark but it doesn't even cough!
Trust code reader and Torque Pro shows:
P0121 - Throttle Position Sensor (A live view of the TPS shows it at 25% when the throttle is closed, goes to WOT fine but sits at 25% at closed)
P0500 - Vehicle Speed Sensor (can't see how this would stop it starting)
P1000 - Emissions test failed (most likely because the battery has been removed after going very flat)
P1794 - Low voltage (again see battery)
Thoughts?
I guess the TPS is the obvious culprit but would that really prevent it from firing up? I would have expected a "safe mode" type running?
Ford KA, has been sat up for a year I would say, fresh battery and it wont fire. Cranks well and I have a good spark but it doesn't even cough!
Trust code reader and Torque Pro shows:
P0121 - Throttle Position Sensor (A live view of the TPS shows it at 25% when the throttle is closed, goes to WOT fine but sits at 25% at closed)
P0500 - Vehicle Speed Sensor (can't see how this would stop it starting)
P1000 - Emissions test failed (most likely because the battery has been removed after going very flat)
P1794 - Low voltage (again see battery)
Thoughts?
I guess the TPS is the obvious culprit but would that really prevent it from firing up? I would have expected a "safe mode" type running?
Our old 52 plate Ka didnt start one morning, so I had the RAC out....
There is a fuel pump shut off by the drivers right foot, its one of those thats shuts the fuel pump off in the case of a bump...
Very similar to this, just need to press the reset button on top....
ETA -If this inertia switch has tripped, the fuel pump wont run....

There is a fuel pump shut off by the drivers right foot, its one of those thats shuts the fuel pump off in the case of a bump...
Very similar to this, just need to press the reset button on top....
ETA -If this inertia switch has tripped, the fuel pump wont run....
Edited by Turn7 on Tuesday 1st December 00:54
geeks said:
Cheers both, I went and checked having come to the same conclusion, gut feeling is the fuel pump, think I shall send it to the scrap man I think, don't have time or space to sort sadly
Don’t scrap it! If the below suggested fuel fix doesn’t work, get on the f ebook group for the KA race series. Think it’s called enduroKA, you’ll get a taker for more than scrap money. Failing that, gift it to me and I’ll do something fun/ useful with it (I have the time and the space!)

eltax91 said:
geeks said:
Cheers both, I went and checked having come to the same conclusion, gut feeling is the fuel pump, think I shall send it to the scrap man I think, don't have time or space to sort sadly
Don’t scrap it! If the below suggested fuel fix doesn’t work, get on the f ebook group for the KA race series. Think it’s called enduroKA, you’ll get a taker for more than scrap money. Failing that, gift it to me and I’ll do something fun/ useful with it (I have the time and the space!)

Chris32345 said:
wolf1 said:
the vehicle speed sensor code relates to the crankshaft speed sensor. If that doesn't work it won't start.
This if it it for the crank sensor it car likely won't even try to inject fuel of sparkGassing Station | Home Mechanics | Top of Page | What's New | My Stuff



