jb fletch

We've just recently started havin an issue wit the car running lean

It's my missus's car & she noticed it after I replaced No. 3 leaky injector. Could of been there before tho !! The car is runnin rough & hesitates up the rev range & simply doesn't have the torque it used too !!

The AFR guage doesn't move much past lean & thats after a drive !! Have replaced the o2 sensor for a new one & MAF sensor for a known good one.

Have a Walbro 255 pump, adjustable FPR & fuel pressure is 3bar (vacuum removed) 2.4bar with vacuum. Doesn't seem down on boost, vacuum on idle seems fine, have checked for leaks & found none.

What else could it possibly be ?? Got a new set of injectors comin, but until then I chucked some injector cleaner in & made no difference, car's always run on Vpower.

Looking for help please as I'm runnin outta idea's, gonna check the TPS tomorrow & have checked all earth's battery voltage, alternator charging @ 14.1v, ecu seem's good & no codes stored !!

Thanking you in advance

jb

dabow

iTrader: (19)

if the injector is the same and seating proper.
should all be fine

id recheck if its seating proper
as thats a commen issue after fitting injectors.
on way to tell. take the fuel hoses of the manifold, wipe them and blow down them if you can hear the air escaping then thats the issue

Glowplug

iTrader: (8)

Have you changed the spark plugs recently? Especially importent if you are running higher boost or more than standard power, which your post could imply.

You 'seem' a little vague when talking about the boost/vacuum, do you have a boost gauge fitted?

Kirstiestar

iTrader: (2)

Yes it has a boost gauge fitted, as far as the gauge is concerned it is fine, doesnt seem to be down on boost and vacum is reading what it always has.

Plugs are PRF7 and were replaced approx 5k ago.

Any other ideas?

Thanks!!

Glowplug

iTrader: (8)

Could try a diagnostic check, see if it throws anything up.

Kirstiestar

iTrader: (2)

Yep done that!

Glowplug

iTrader: (8)

And what did it say..?

danssti

I would take it to a scooby specialist asap,let them have a look and they should be able to inform you of any problems you have with the car/give you advice on what action needs taken if any.



Dan
05 jdm sti
400/400

danssti

I would take it to a scooby specialist asap,let them have a look and they should be able to inform you of any problems you have with the car/give you advice on what action needs taken if any.



Dan
05 jdm sti
400/400

danssti

double post,sorry





Dan
05 jdm sti
400/400