My car idles too high, immediately after starting it will idle at 3.5k rpm to 4k rpm, then flutter above 3k. I swapped back to my old tb thinking that would cure it only to find it the same. Any ideas? Could it be the ecu?

Car is a 2000 1.2 Bravo

More likely to be an induction air leak. Have you got all the vacuum pipes in the right positions.

Cheers

D

Cheers! There was a leak in the breather, it did help, but it still idles at around 2.5k rpm. I was watching the tb in action (plus ear defenders) and when I put my hand on the tb itself, I felt the stepper motor working the tb. If I were to put washers under the stepper motor, would this cure it? Or I also thought maybe the air mass meter has packed up?

Cheers again!

I suspect the stepper motor was reacting correctly.

Did the problem start when you changed the TB?

Cheers

D

The problem was there the minute the car started for the first time, I was using the other tb and stepper motor. It felt like it was fluttering
What ive done is an engine swap, it was working correctly in the other car. The engine is the same except for the manifold and its components, which came with the car ive put this engine into. Im now using the tb and stepper motor that originally came with this engine. Its possible some damp may have got into the ecu plugs, would this cause this?

or in the ecu casing itself..the ecu and all the loom from your other one ?

get a hair dryer to the ecu it obvs sounds like its getting the wrong type of signals, i could be wrong, but its an idea of course

Hi which engine do you have? I suspect it is 1.2 16v. If 1.2 TPS fault is most likely. There you only need to put washers between TPS and throotle body. There was a lot of post of this problem on forum. Just find it.

Bravo16VSpoonz said:

or in the ecu casing itself..the ecu and all the loom from your other one ?

get a hair dryer to the ecu it obvs sounds like its getting the wrong type of signals, i could be wrong, but its an idea of course

Click to expand...

Thats what I was thinking, the cars outside and poorly protected from the elements... I shall give that a go later

fiat37 said:

Hi which engine do you have? I suspect it is 1.2 16v. If 1.2 TPS fault is most likely. There you only need to put washers between TPS and throotle body. There was a lot of post of this problem on forum. Just find it.

Click to expand...

It is indeed a 1.2, thats what I was thinking too but was trying to avoid going down this route if possible. I'll try that too later along with the drying of the ecu plug. Thinking I'll also try changing the air mass sensor too, that could be past its sell by date

Cheers for the help!

Did you make sure all the inlet gaskets are in the right place and seating properly.

Take a squeezy bottle filled with water and spray the water around the inlet manifold joind. Listen for a change of noise.

Cheers

D

Bravo16VSpoonz said:

or in the ecu casing itself..the ecu and all the loom from your other one ?

get a hair dryer to the ecu it obvs sounds like its getting the wrong type of signals, i could be wrong, but its an idea of course

Click to expand...

fiat37 said:

Hi which engine do you have? I suspect it is 1.2 16v. If 1.2 TPS fault is most likely. There you only need to put washers between TPS and throotle body. There was a lot of post of this problem on forum. Just find it.

Click to expand...

rallycinq said:

Did you make sure all the inlet gaskets are in the right place and seating properly.

Take a squeezy bottle filled with water and spray the water around the inlet manifold joind. Listen for a change of noise.

Cheers

D

Click to expand...

I have tried all of these and it still wont idle right The ecu plug was given a thorough drying and a gratuitous spray of contact cleaner. Im on my 3rd stepper motor, current one on the engine is built with 2 washers per bolt. And I've triple checked the inlet manifold itself for leaks and faulty or incorrectly fitted gaskets. However it is the stepper motor itself playing up as its getting a totally wrong signal in my opinion.

The best way to describe the situation is a before and after vid. The only difference is the lack of exhaust. The engine is as it is in both cars

Before:


After:

Just to let everyone know, I got it sorted, it was the stepper motor and the ecu needing to be reset. But as I cant drive the car as it is yet, some washers between the motor and tb did the cure, 3 per bolt to be exact

Cheers to everyone for the help!!

2nd vid actually sounds quite cool sounds like its changing gears :slayer:

Sorry I was sure you did ECU reset after putting washers. But I am happy you cured your bravo now

P.S. I really do not like your gear knob