Malfunction indicator light

[supersmooth]

The battery died on my car a few weeks ago. The malfunction indicator light and the asr light came on when driving.

I put on another battery (not new but good) today and it started first time no problem. It run a bit rough. I left it for five minutes running then went for a drive. Within a minute the asr light had come on. Then after about five minutes the malfunction indicator light had come on. I drive home and on the drive it run rough. I turned it off. I re-started it but it was hard to start and I had to give it some throttle to get it to start and it was still running rough with the malfunction light on. The only thing I have done is the free ram air mod and a k+n filter. Could this extra air be affecting the sensors?

Any help is very appreciated.

[2001NBMZ28]

It's normal for the PCM to have to relearn the idle after a dead battery, but shouldn't take long. Since the SES/MIL is still on you need to get the code(s) read. FRA and K&N probably isn't the issue. Don't know about England, but here in the states most auto parts stores will read codes for free.

[supersmooth]

It was the EGR valve. The EGR pipework was very hot. We took the valve off and it was jammed open. We poked it with a driver and a bit of metal fell out and the valve closed. Put the valve back on, started it up, it run perfect and no warning lights!

[Smittro]

Glad to hear you got it going again.

As for the EGR pipe, they get hot all the time as the EGR is fed by hot exhaust..