STI V7 JDM
 

My car has its own (mapped) ECU in place , If I went to the main dealers will they be able to plug in there fault finder ???? :wonder: and advise me of any proplems :( cheers alan.

Yes, this re your fuelling?

Yes,

Alan if it has its o/e ecu and its been remapped yes the main dealer will be able to check for any fault codes if you are running motec well that I can't answer.

Did you speak to Pat or Andy? or get them to talk to one another? Pat checked it out the other day, so he should be able to communicate the data to Andy.

Ive spoke to Andy , He is to far away to help , I left a message on Pats phone , He has not got back to me yet , I phoned Mark He is trying to help , :brickwall If I go to Subaru garage tomorrow will they be able to fault find ????

They can use their select monitor but if there are no codes most are stuck, it needs someone who can relate maf volts to long and short term trims to temp sensor to map sensor to cam timing to ignition (fine and course learning), looking at that lot builds a picture.

Want to describe the issue on here, maybe can throw some light possibly, problem shared and all that.

cheers

bob

Hi Bob , My car was on S/C R/road, last week they told me it was running very lean 14.0 on the afr printout , >> If I remember right Ive left my printouts with a mate, ,

Alan, your trying to run before you can walk. Pat did a diagnostic of some sort on Sunday night when you called at mine didnt he?

You need to get him and Andy to speak to one another.

Go to the dealers will do you no benefit what so ever IMO.

Steven

Just spoke to Kevin at Pulleyns , He said he could not help, (Stevens right ) ;) But he did say if it was running lean the exhaust would be light inside it ,>> It is black as this car has allways been and as my classic was, :brickwall Cheers Alan.

Alan

I suspect the R/R AFR meter was not reading correct. If your car was in fact running with an AFR of 14:1 whilst at 420bhp it would meltdown in seconds.
I know you have just done a whole load of drag runs including a number of 160mph top speed runs at Elvington without issue, hence my questioning the AFR meter.

It would however be unwise to completely disregard the reading and a further check (ideally a different wideband) would be adviseable.
Optionally if Pat (or anyone else with deltadash) can send me the datalog from it I can diagnose it remotely.

Andy

Andy, pat checked it on Sunday when Alan called at my house. They plugged his Motec PLM in (i believe) and the figures were suggesting similar to the RR AFR.

Steven

If thats the case, better keep off boost until the reason for it is found.

If Pat logged it on DD, that log would be usefull to help determine if it is the fuel pump issue.

Andy

Sounds like a pump issue. Exactly the same as I experience when mapping a P1 recently. Fine one minute, massive leaness the next as soon as you went over approx 0.9bar boost (in this case in paticular).

Also check that the vac hose is properly connected to the fuel pressure regulator, it will have a similar effect to a failing pump.

Paul

Strange that, both cars i have had a hand in at some point :D Although i didnt do anything with fuel pumps.

Steven