ronjeramy

iTrader: (1)

On my way to work this morning, my version 5 sti type r felt slow, though it's still pulling 1 bar of boost ( only mods are cat back exhaust and panel filter) now my journey to work is only 10 miles mostly motorway, but my Mpgs are shocking(18mpg). Could it be a knackered lambda?

Cheers

Shaks-STI

iTrader: (7)

have you had you car mapped after the mods?

ronjeramy

iTrader: (1)

Nope, std map, I've had it on the rollers and all was ok.

Midlife......

iTrader: (2)

My car hates summertime with high temps......... 19 MPG on a good day

Your JECS ECU isn't as good as my DENSO at spotting MAF/ Lambda issues, My Classic know how is a bit flakey......daft question but does the car have an OBD II port ??

KTF

Shaun

ronjeramy

iTrader: (1)

I wasn't too bothered about the mpg's till I was talking to my neighbour, and his Audi S4, 4.2 v8 does 23+ mpg
I think it does have an odb port Shaun

Jolly Green Monster

iTrader: (4)

It has an obd port but its not obd 2.

But with no engine light you are unlikely to have a stored error code.

However you can check for error codes using the black and green connectors under the dash, instructions in the help pages on my website.

Was the last tank of fuel different to normal?

When it was checked on the rr did they check it with detcans?

Simon

ronjeramy

iTrader: (1)

Hi Simon, the fuel is always vpower, though the tank is about 1/4 left in. I've had the car about 18 months, it went on the rollers shortly after I bought it, I'm not sure if they used det cans, it was at aet turbos in Wakefield

ronjeramy

iTrader: (1)

Ive just done a CEL check and its showing up 3 errors, 23 Mass air flow sensor, 24 Idle air control solenoid, and 12 Starter switch. Is it possable forr it to show up 3 errors? and if so is it the MAF that is causing the slugishness?

Tidgy

i bet if he drove it properly it wouldn't get anywhere near that lol

Jolly Green Monster

iTrader: (4)

As it is a v5 I would replace the maf sensor as a precaution anyway..

the UK ones are the same, you only need the sensor not the whole housing, a decent dealer should sort you one for about £98.

fit and do an ecu reset (on my site again) and see how it is and if any other error codes occur.

In the meantime I would do a reset and see if any errors reoccur and drive it part throttle as if the maf is failed you could damage the engine.

Simon

ronjeramy

iTrader: (1)

Cheers Simon
Tidgy I think that's him driving it sensibly

ronjeramy

iTrader: (1)

Simon ive changed the MAF and reset the ECU and its showing no errors now, though the car doesnt feel quite as sharp as before, possably even laggy, what i have noticed is there is a sqweek (coming from the wheels???)

Tidgy

lol, tell him he should drive it correctly,,,,,,,

single figures or hes a *****,,,,