hi guys.

long story short
so far i have changed 2 tuners and my car have the same problem
car wont start on the first crank (it starts with 2nd try) when it's been sitting for a while 3-4 days or when it's hot outside and when it starts i hear a knock from the engine like preignition.

i know it hears like a dizzy problem and i have changed coil with new and no improvement...

recently pulled out my spark plugs and everything was covered with fuel the whole spark plug also inside the cylinder piston top was wet from fuel too !
all 4 plugs was the same.

my set up is simple
jdm b18c type r engine
walbro 190 lph pump and rdx injectors
toda header exhaust
intake w/ vellocity and k'n filter

car on the dyno made 210 ps and run great on the street but have this hard start problem...

 

Kalispera ti ginete ? When did you pull your plugs ? after a WOT run ? or was the car parked for a while ? I'd put my money on Leaking Injector OR if it isn't fuel you seeing and its Coolant. Who tuned your car btw ?

 

no it was not after a wot pull car was sitting for a few days and before that i was driving it as normal.

i miss some coolant but it is very little i add every 6-7 months less than 200ml .
spark plugs and everything was smelling fuel for sure.

i bought my injectors new from xenocron
all 4 injectors leaking ?
btw i use stock fpr can that have any affect ?

 

What software was the car tuned on? Do you have the file to be able to look at the cranking values and the injector battery tables that were used when tuned?

 

it's tuned on crome by reputable tuners here both times
but i have no access to the tuners files and his shop is 400km from my place.
tomorrow i will contact with him to ask.

today tested stock ecu nothing changed on start ups but i will use it as it is for a few days

 

update
oem ecu + rdx = still hard start problems
oem ecu + oem injectors = starts fine and spark plugs are dry again !

so my rdx injectors was the issue ...

i need new injectors asap !
recommendations anyone ?????

 

OEM ecu isn't designed to run Rdx injectors

 

^x2

what size are the injectors?

I highly doubt all 4 injectors are bad, it's more than likely the tune, as xenocron said it's probably the cranking fuel values and/or battery voltage offsets.

contact your most recent tuner and have him email you your map, then post it here in this thread so us tuners (especially chris-xenocron) can take a look at it

 

i had a chipped p28 tuned by a shop for the rdx injectors here in the first place
if you read my first post you will understand why i installed oem ecu .
anyway i checked my injectors today 3 of them are loosing fluid like mad !

 

By "losing fluid" you mean leaking? How was this determined?

I find it extremely improbable that three out of four injectors were just bad out of the box...we buy them in quantity and group them together...haven't really had 2 definite failures out of the last 1000 or so sold, so there is most likely just another explanation here

 

is it remotely possible for you to be more descriptive?

 

Is it just me, or are there several members on here lately that have horrible grammar? I can't follow anything that this OP is trying to say, theres that Raverx3m guy that posts everywhere, and then the marshall guy making his "ruff idle" thread.

Jesus people - if you want help, at least know how to properly construct a sentence so we know what the **** you are saying..

 

please read my first post here i'll quote it for you :

where i need to be more descriptive ?

 

that's the spirit !
english is not my mother language anyway
thanks for help !

 

too much fail in this thread by the OP.

the most important question asked of you yet and you still haven't even answered that;
WHAT
SIZE
ARE
THE
INJECTORS
????

by answering the above question. and by answering xenocron's question:

we can't help you unless you help us and yourself.

 

how were they leaking?

 

yea ''leaking'' i lost an ''o'' in there i should recheck my post sorry.

i send my injectors to a local shop they clean-test injectors there
the guy called me and said that 3 of my 4 injectors are leaking.

as i said car was tuned 2 times by 2 different tuners they have tuned numerous cars with this injector and they recommend it to me.
i'm really sorry that i cant have access to the injector battery tables etc.
i saw in your site that you offer a base map service
if you believe this would help is it possible for you to send me a base map ?
thanks

 

the problem is that most members here won't read anything in a thread than the thread title and the last post on a thread

i'll quote that again from my first post :

my set up is simple
jdm b18c type r engine
walbro 190 lph pump and rdx injectors
toda header exhaust
intake w/ vellocity and k'n filter


you can learn more about these injectors here : https://honda-tech.com/forums/all-motor-naturally-aspirated-44/anyone-using-acura-rdx-injectors-410cc-%2437ea-1871137/
they are 410 cc btw...

 

I read every post before posting myself. I saw that it said RDX injectors in the first post, but that does not specify what size they are. 410's are the stock size, yes, but you didn't say stock size. there are other sizes available in that style injector, upwards of 1000cc's

 

Holy ****! FINALLY.

This is what EVERYONE was asking. Damn.

 

what is the big deal if they was 1000cc instead of 410cc ?

 

No big deal, if you want to send me the flow sheet or something from the guy who flow checked them and somehow determined them to be leaking, I'm more than willing to work with you and help you out

Of course I don't manufacture the injectors but I will do what can here...

 

the tune

 

car was already tuned twice by two different tuners with the same injectors but with different headers and exhausts.
i 'm sure that both tuners know what they where doing.

 

since these injectors are oem that dosen't mean that they can't have a failure or been damaged through shipping or been just my bad luck etc.
sorry that i can't give you a proof that they leak
BUT i will buy another brand new set of rdx injectors install them and update.
cheers !