So you don`t see this often, ConZult screen shot below from a Jap spec TT with a slight running problem (backfire, will reveal later) any thoughts or theories?

 

Jeff TT

 

na injector in a tt engine

Well that code says to check or replace the injectors. any more info to go on, last time we were chasing a red herring, are we doing the same this time?

Incorrectly wired injector?

Bad injector cable or earth !

I had this code last week lol!!

No injector connection or incorrect ones fitted problems, the engine was running a little off colour at idle, nothing major but some evidence of increased turbo lag though on the test drive.

 

Jeff TT

I had this code last week lol!!

 

Did you? or are you telling porky pies!:laugh:

 

Jeff

no i had that and the 35 for the dett iirc :)

one or two injectors wired up in wrong order, or two injectors running of one loom???

one or two injectors wired up in wrong order, or two injectors running of one loom???

 

Nothing that exciting to be honest.

 

Jeff

o ring not sealing on injector or not an injector fault at all?

o ring not sealing on injector or not an injector fault at all?

 

Your getting there now (ps. the o rings were fine)

 

Jeff

A crack in the injector casing

Any sensor input that can cause "RICH" fuel signl can cause an INJECTOR code

 

Any cause of excessive fuel pressure can cause an injector code

 

This is why the ConZult system or any diagnostic system is only as good as the way it is read.

 

Collecting more information from the ConZult its possible to more acurately pin point the causes of codes as often the code can be misleading or just the start of the diagnostic rather than the answer.

 

The "ALPHA" reading of CONZULT indicates if the fuel mixture is rich, lean, or correct and in this case was abnormally low which indicates a richer than normal figure, but caution is required when reading Alpha output as "chipped" ecu`s often read lower than standard so they are safe when running extra boost.

 

Given this the eprom mapping was read and showed it to be a modified ecu but not to point where the alpha output would be so low.....

 

Jeff

Edited October 12, 201015 yr by JeffTT

anything to do with the o2 sensor as that reads the mixture? giving a false reading possibly?

anything to do with the o2 sensor as that reads the mixture? giving a false reading possibly?

 

Well O2 sensors can cause all sorts of running issues but alone cannot trigger this code.

 

Jeff

blockage in fuel lines causing higher pressure?

faulty fuel pressure regulator?

I would say that its either a fuel leak/blocked fuel filter reducing fuel flow?

 

OR an airleak after the throttle bodies?

could it be a failing fuel pump

Conzults cable plugged in wrong? lol

Ok the idle runing issues were mostly caused by a typical air leak ( split pipes) but the turbo lag was also due to a badly timed cambelt which is a clue to the code.

 

Jeff

mine had a few boost leaks and the injector rail had a split in it. All fixed now :)

damaged valves

damaged valves

 

Closer than you might think, but not damaged.

 

Jeff

Edited October 12, 201015 yr by JeffTT