2.3i Zetec Auto No Power When Warm

[galaxya61]

We have a 2.3i Petrol Galaxy 1999 plate, had a few issues with coil packs previously but all now resolved.

 

Problem now is when starting from cold everything is OK, when warm after a minute or so when the engine is revved there is no power at all, there is a slight farty sound and the engine dies and struggles to start again. It will tick over OK, just when the engine is revved is there a problem.

 

Have checked for error codes and there are none (using Proscan 5.0). Not sure what I can check for sensor wise, the Hego sensor is reading OK by the looks of the output, engine revs OK.

 

Could it be the CAT, EGR sticking (if so where is it !) or hose damage?

 

Hope you can help.

[galaxya61]

Update: Had another look today, replaced relay 30 (after a struggle) with one I already had and repaired but made no difference.

 

Sounds like a hose problem by the sound but not sure where to start looking?

[galaxya61]

Hello again. Need some advice on this diagnostic output.

 

Fuel system 1 (open loop) system fault, no trip codes.

 

What could be the cause of this?

[ezetobebad]

We have a 2.3i Petrol Galaxy 1999 plate, had a few issues with coil packs previously but all now resolved.

 

Problem now is when starting from cold everything is OK, when warm after a minute or so when the engine is revved there is no power at all, there is a slight farty sound and the engine dies and struggles to start again. It will tick over OK, just when the engine is revved is there a problem.

 

Have checked for error codes and there are none (using Proscan 5.0). Not sure what I can check for sensor wise, the Hego sensor is reading OK by the looks of the output, engine revs OK.

 

Could it be the CAT, EGR sticking (if so where is it !) or hose damage?

 

Hope you can help.

 

I had this very problem a few days back.

 

1 - coil pack failure.

 

2 - maf sensor failure.

 

both of the above were my problems. So firstly disconnect the MAF sensor block & see if this makes any difference. Then move onto checking plugs, replace ht leads & then maybe think about swapping out a coil pack. there is a place in essex that does the coil pack for

[hug]

I don't know if this is of any use to you but I had a similar sounding problem with an audi last year, turned out to be a blocked exhaust...Caused by the shattered guts of the catalytic converter ( I had wondered where that occasional rattle was coming from) Two weeks before i sussed it.