Hondata

what engine are running? setup?

For me in the end it turned out to be a bad ecu, I've changed the ecu, plugged in the s300 and problem was solved. but reading you post it seems you have bad injector dead times.

I tried the new dead times, started the engine, fiddled a little bit to get it to idle stable and afr set to 13.0-13.01. I turn on the headlamps and afr goes to lean, engine stalls and turns off. :(

and I also forgot to take a datalog.

here is the calibration I used, which I got from here.

mhm

I'll try and measure the voltage together and try the new dead times as they really are much more than those stated by ID.

Thanks

so as per the thread you posted I should up the values 0.02 at a time. But should I up only a particular dead time (the one being used at the moment) or do I increase all the dead times evenly together?

I'll try it tomorrow for sure and report back.

Thanks again for your help.

I really appreciate ...

at 43psi fuel pressure:

VOLTS --------- DEAD TIMES
0 --------- 2.60
8.09 --------- 2.60
10.11 --------- 1.67
12.13 --------- 1.24
14.16 --------- 0.98
16.08 --------- 0.80
24.55 --------- 0.35

With all the calibrations I`ve used, including the one I posted above I changed the dead times as per injector dynamics. O

So, I'm still going through this problem guys. I've tried changing different calibrations to see if the problem was from the actual calibration but all the calibrations acted the same. I start the engine, everything smooth afr is 14, and then switch on the headlamp and afr goes 19 :(.

I pluged in ...

Thanks, I will try to upload a datalog also. Is there any kind of test that I can perform to see if the ecu is bad??

my car is a 1996 jdm honda integra with a turbo b18c engine.

engine specs:

ported cylinder head
ID 1000cc injectors
fuel pressure regulator set at 45psi
omnipower 2.5bar MAP
omnipower TPS
bkr8eix spark plugs
mishimoto thermostat and fan switch


also find calibration attached, will try to get a ...

dead times are there to compensate changes inthe injector when there are changes in electrical load. am I right?

I start my car it runs 10afr, battery voltage is 14.1v and the dead time value is 0.99. When the fan starts, battery voltage remains 14.1v, so its still using same dead time

i tried ...

I am having a really bad issue with the p28 s300. I had my tuner tune my freshly built turbo integra, it was a really hot day and also the turbo sucked hot air from underneath the hood. Altough my tuner had switched on his blower, my car's cooling fan would come also ON. engine was set up really ...

I don't think its about dead times, because when the fan starts, there is no change in battery voltage (as seen on the Smanager). Still haven't solved the problem yet.

changed the battery to a new one to be sure its ok. I also added a new ground wire going from cylinder head to negative battery therminal, but got the same result. Please someone try to suggest me what it might be as I cant find the source of the peroblem.

when the fan kicks in, there is no change ...

I've checked all the ground points till now, but I had the same result. I will try to change the battery to see what happens but I think the battery is fine. Thanks for your reply.