Hi, i am new to the forum and hoping someone can help advice a car novice.

Over the past few weeks, when i first drive my car, when it is cold, it has very little power. This lasts for about 4-5minutes then it is fine. I have no problem starting the engine and initially all seams well, then power drops to the point that I think the car may stop. I have to drop my gears back down to first then slowly build back up.

My car can then be sat for 8 hours whilst im at work, but its never an issue when I drive home, only on the first use of the day.

Yesterday (with some guidance!) I found the following fault codes:

16490 Manifold Abs pressure

16891 idle control system high

16555 fuel trim bank system low - (had this fault for some time)

16514 o2 sensor cicruit (had this fault for some time)

01314 Engine control module

My car is not in the best condition ( hense long standing faults), but I trying to keep it running for as long as possible at the moment.

Im trying to understand if the first two fault codes could be related to the problem im having with the car? If yes, my understanding is I could try cleaning the manifold sensor to see if this helps?

If anyone could kindly offer any thoughts or advise that would be much appreciated.

Many Thanks

Peanutt