question on the 4 pin black coils

[cerealkiller]

good morning
ive got a 16v abf turbo running a dicktator 60-2, when the car is hot the car idles unevenly and when my car lights is on , motor wants to cut out completely has anybody had a issue like this ?

[panic-mechanic]

It can be a simple tuning issue. Not sure what the coil question was then. What coils are these exactly? Are you firing them directly and correctly.
Is just bad on idle?what size injectors, which injectors?

[cerealkiller]

thanks panic for coming back to me , the coil question is can a coil cause a uneven idle aswell as cut out the motor, yes i am firing them directly , just when its hot does it idle badly , Bosch 1000cc

[cerealkiller]

car has been tuned it was running fine but im still in the running in the motor just passed the 1000km mark

[cerealkiller]

also they company that did my whole conversion didnt put a fuel filter as well

[panic-mechanic]

1000 cc injectors will never idle well.

[panic-mechanic]

What fuel and are you aiming for like 600 hp or why so big?

[cerealkiller]

1000cc it idled fine before it was tuned by nitro power sport everything was fine just all of a sudden i had this issues so i change the cranksensor same thing, ive got 3 fuel pumps a precision fpr so stumb

[panic-mechanic]

Go speak to your tuner.

[cerealkiller]

Just a question can a sticky injector cause something like this?

[cerealkiller]

jaaAAAAAAA i thought i could try here before i go to him

[panic-mechanic]

The problem is that it can be many things but on aftermarket it can simply be that it went to a different point in the table that he sort of neglected to tune or the temp sender failed or something that is easy to see once you open the management. If something like an injector failed it will miss while driving/under load as well not just idle. Sorting idle on huge injectors a not as easy as it sounds.

[vwpro]

Very difficuilt to diagnose a problem like this, I sit basicly with the same problem with my audi s3 run dictator 60-2.
Fine when cold, the moment it reach 90deg temp it goes besirk, when idle it start get very rich, on idle 800rpm floods and then leans out compleetly from 3000rpm onwards, maplped down, then when cold dont want to start at all, mapped back, but all starts again when get to temp
Changed out ecu with new one, did not copy file, start mapped from new, still same problem, temp sensors all fine, thats what ecu shows on logs, 1000cc injectors can work 100% depends what type, bosch, delphi liniers injectors works 100 if tuned correctly.
No problem with coils, the coils cannot make system lean and rich, I still suspect the dicktator ecu, I run 2200cc bosch injectors, when cold it idles perfect afr 12.5, the resistance on injector is 12ohm, think ecu driver cant handle them when ecu driver get hot. Dicktator(chris dicks) claims its not a issue on there ecu.busy change the ecu to shinobi system S2 pro. We changed feul pumps to 8bar supply supply, have 2 electronic pressure gauge sensors monitor rail pressure and pump pressure, even on dyno I monitor those pressures on the graph, no change in pressure, rise from 3.5 bar to 6bar liniar to the boost raise, so perfect condition. Let car cool down run and perform perfect till it get hot. So yes a head spinner. Will let you know if find anything.

[panic-mechanic]

because those BIG injectors are relatively slow to open you end up with MS on idle that does not allow the injector to basically even open. So effectively the time you tell the injector to open is less than it physically takes to start spraying. So basically you have to make them snot rich on idle for the open time to allow the injector to spray at all. No matter what system you use - it is basically a restriction due to injector open time.

[PapaJo]

Agree with panic and vwpro and large size injectors are not easy to tune on idle. What stumps me also is that once cold it idles ok and become very problematic on operating temperature (90 degrees C). Did you check the temperature compensation values on Dicktator as they come with default values, which works mostly okayish on small size injectors?

[panic-mechanic]

it Idles better when cold because the compensation add MS which means the injector gets to the point where it open. As it warms up the compensation disappears and the MS gets shorter and now they don't open anymore. Which is why you have to make the MS longer on idle meaning it runs very rich on idle just to keep going.

[cerealkiller]

thanks alot for all the info i spoke to sarel 8v performance he said i should check my fuel pressure if it adjusted by itself due to vibration (i have a precision fpr ) which ill do cause before it idled fine for months just one day in traffic boom random idle lokl

[cerealkiller]

SOOOOOOOO after tuning the car was fine and then yesterday starting its same kak again uneven idle

[panic-mechanic]

get the dictator software and the cable and learn to fiddle with the idle tuning youself.

[PapaJo]

SOOOOOOOO after tuning the car was fine and then yesterday starting its same kak again uneven idle

Was it tuned by the same tuner again? Was the tune out from previous time?

Agree with Panic, get the software and cable and check what happens on Dicktator.

[PapaJo]

SOOOOOOOO after tuning the car was fine and then yesterday starting its same kak again uneven idle

Was it tuned by the same tuner again? Was the tune out from previous time? Did you check fuel pressure? What is the condition of the spark plugs and have you tried a colder range spark plug?

Agree with Panic, get the software and cable and check what happens on Dicktator.

Once you connect to Dicktator, you will be able to see the ms value of the injectors on idle.

[Unobeat]

get the dictator software and the cable and learn to fiddle with the idle tuning youself.

I had to save myself continuous stress with diagnosing my issues cause i did not know were to look because i did not have the software and cable. With my car being soo specially modified and the tuner does not stay close to me and it becomes rather expensive to keep on driving(towing) to him for small things that i could have sorted them out myself.

So yes, get yourself the software, cable and learn the basiscs of the interface.
Guys like Panic, Papajo, Vwpro and etc will assist you how to troubleshoot.

[PapaJo]

[cerealkiller]

thanks gents will do

[cerealkiller]

HOWZITTTTT GENTS

the only thing now that i can maybe think of my dictator voltage indicator shows 12.94v without my lights on or fans running so im not sure if the voltage factor is kicking in ,what is the normal voltage? so when im driving i put my headlights on, at times the engine wants to completely cut out