Flashing engine management light in traffic. Injectors? Cars done 30k

Hi all

I know there have been plenty of threads about injectors, but thought I'd get some advice for my situation.

Cars done 30k. 07 plate.

The engine management light starts flashing when I'm sat in traffic, its usually very soon after I've started the car up (5 mins ish). The revs at idle are around 900.

Theres no 'check injection' message, and once I get out of the traffic and give the car some acceleration the light stops flashing and goes off.

If I plug it in what kind of error codes relate to faults with coil, injector(s), boost solenoid valve, pressure sensor, etc......I've read that faults with any of these can cause the flashing engine management light? Just need to know what I'm looking for.

I've spoke to Ed on here about getting the injectors cleaned so I know the cost for that, but what are the likely costs of the other parts for the coil, boost solenoid valve etc if they are at fault?

any help would be great.

Cheers
Jp

 

Thanks for the quick reply !

What kind of noise should I listen out for on the exhaust?

And you're gonna laugh now, but where are the coils located ?!? Are they easy to get to?