Engine Check Light After Filling Up With Tesco Momentum

[Type_RA_Andy]

Hi guys,

As title suggests, petrol light came on, swung in to tescos and put in some of their 99 Ron momentum. 10 minutes later, the engine check light came on, maybe pure coincidence, but this is the first time ive used that brand.

I googled the problem, and I'm not the only one that this has happend to with a 04 wrx, and it's happened to various other makes too.

Obviously I will get the codes read just incase it's not duff petrol, but has this happened to anyone else?

Cars running like a dream as usual, but as a precaution, I'm driving it off boost, will the light go back out when I go back to vpower, or will I have to get it reset at a garage?

Cheers, Andy

[paul555sti]

Doubt very much its the fuel, I have only used that stuff in all my cars and never had a problem. Could always be a bad batch but until you get the code it hard to say.

[g1983]

Sounds like the lamda sensor. Might go on and off at random to a permanent on. Can you get the obd on to it.

[lister100]

I have a 05 wrx and had no problems with momentum 99. Used it for year so far and now the car been mapped with it in. Good recommendation from the boys on Scoobycity. Sensor on way out? As above

Phil

Edited June 30, 2013 by lister100

[davey l wrx]

I usually only use momentum in the Litchfield and can't say I've ever had a problem with it, probably just a sensor on the way out.

There's stories of just about any make of fuel causing issues with some cars.... I saw a thread a couple of weeks ago about the new Shell fuel (V-Power replacement) causing issues on cars. If you dig deep enough through the inter-web any fuel will allegedly wreck your car.

[g1983]

The new vpower nitro makes a few cars I know drive like a bag of spanners. Too many cleaners in it

Stick to Tesco 99 (cant spell momentum )

[Type_RA_Andy]

I've used it in my other two imprezas without fault too, just not this current one, just thought I'd ask.....

Going to get the codes read tomorrow.

*edit*

Actually guys, I think I've been a bit if a spaz, I haven't had this wrx long, and it's suddenly dawned on me it's had the rear cat removed, as its had a new exhaust system, and has yet to be mapped, I'd put money on the fault code being something to do with this??

[g1983]

Is the top sensor still in the downpipe cat? And centre cat and sensor removed? For a straight through?

[Type_RA_Andy]

I know the top cat and sensor is still in place, also that the centre cat has been removed, as for the sensor, I will investigate further tomorrow.....could this be whats suddenly thrown up the check engine light?

[monsterenergy]

The only time I ever used Tesco fuel (normal unleaded) was about 5 years ago.

My VW Golf threw a check engine light minutes after leaving the petrol station.

May have been coincidence but will never be back to refuel at Tesco.

[scottishtaffy]

my 1995 type ra is nearly always running on momentum. with the odd fill up of optimax never tried the nitro yet and in the 18 mts of running ive had no problem. last dyno was 300 brake on the stuff. has yours had a remap, heard that if they were mapped for nitro then you put different fuel in it could throw a light up. personally i think its a coincidence. like above tho. its all theroy untill you get a code read for it. tho i do know mine doeas not like the bp ultimate. noticable drop in power and acceleration so i steer clear of bp

Edited July 1, 2013 by scottishtaffy

[jamesm]

I nearly always run my WRX on Tesco 99. Occasionally I get the engine management light on (came on on the Fling). Fault code cames back as front O2 sensor. I just get it cleared and is normally ok for anything up to a year after that.

Pretty sure Phil 1967 said the new Shell stuff is just a marketing exercise and it is no different to 'old' V power'

[g1983]

The new vpower is stinking. Definitely more additives.

[thebigfelly]

You able to make the showcase on wed?

[g1983]

Who?

[scoobywho]

Of course he will hes riding shotgun I think

[thebigfelly]

Type ra andy

[g1983]

He lives in Kent DCI Doughball

[scoobywho]

Hahaha

[thebigfelly]

He lives in Kent DCI Doughball

How do i ken he lives in kent bozzy?

[Type_RA_Andy]

Hey guys,

Further investigation, I've got a blow in the exhaust system, rang around this morning and and most places want 35-40 quid to plug in to a code reader, I can get my own for that, so gonna order one in a minute, cars not being used now as I'm going away for a week, so it will be ok until I get back,

They say it never rains but it pours, got another issue that's just decide to show up on the way home from picking the wife up, I'll post a separate thread for that.....

Cheers for all your help, oh and no I'm not gonna make it to the 'showcase' ;-)

[thebigfelly]

Hey guys,

Further investigation, I've got a blow in the exhaust system, rang around this morning and and most places want 35-40 quid to plug in to a code reader, I can get my own for that, so gonna order one in a minute, cars not being used now as I'm going away for a week, so it will be ok until I get back,

They say it never rains but it pours, got another issue that's just decide to show up on the way home from picking the wife up, I'll post a separate thread for that.....

Cheers for all your help, oh and no I'm not gonna make it to the 'showcase' ;-)

Aye i get that now after bozzy gordon say8n y9ur fi down south.. was gona say ive got a code reader you could check the code for and clear it

[g1983]

Its under his name on the left of the screen Chief Bum Inspector lol

[thebigfelly]

Lol well i use my phone so dont see that G.. u didnt complain when inspected your bum on the fling when we got seperated from main group out in the woods big boy

[g1983]

That's cause we had our fully qualified paramedic on board with his gasket issues PC Plumb