Check Engine Warning

[mr2lad]

ive a mk4 ls and ever since checking fuses by pulling them out to look at them ive had 2 warnings pop up on the display 1st was the vsc which i managed to get cancelled out my self but now my check engine warning display keeps popping up after the 1st 5mins of starting up (only on the initial start up off the day), i stop the car and switch ignition off n on again and its fine for the rest of the day, i always kno its about to come on as car is slightly unresponses on the accelerater n then wee red lite comes on with check engine warning on display, but like i said if i pull over n switch off completly then on again everything is great till the following day wen it all happens again. ANYBODY ANY IDEAS before i head to lexus in aberdeen

[Mark W]

You know anyone with an OBDII reader? If so, get them to check the codes for you and report back with them.

Stealers tend to charge a princely sum for just checking codes....call them first to check.

If they do, you'll likely get the codes read much cheaper from an independent garage. That should give you some indication as to whats happening.

Doesnt matter if the light is out when you check - as the ECU should store any previous codes in its memory anyway (freeze frame) as well as readings for all other sensors at the time the fault occured.

Alternatively, if you have a laptop - you can get OBDII readers and software for around £30 now anyway......could pay for itself after only one time....

[mr2lad]

You know anyone with an OBDII reader? If so, get them to check the codes for you and report back with them.

Stealers tend to charge a princely sum for just checking codes....call them first to check.

If they do, you'll likely get the codes read much cheaper from an independent garage. That should give you some indication as to whats happening.

Doesnt matter if the light is out when you check - as the ECU should store any previous codes in its memory anyway (freeze frame) as well as readings for all other sensors at the time the fault occured.

Alternatively, if you have a laptop - you can get OBDII readers and software for around £30 now anyway......could pay for itself after only one time....

just got codes read at a toyota dealer. code came up as p0325 knock sensor 1 circuit (bank 1 ) basically engine running slightly to lean so im told and the cost of the read by toyota dealer NOT A PENNY, were as a local mechanic was wanting £40,figure that out!!!