Have i missed something or wot, I've converted this 1.3 - 16v with carbs still using the standard 1.3 loom and adding the ecu, The carbs have been set up properly with all new jets etc, I've put new leads on, new coil, new distributor, new ecu and ignition amp thing but i still have a misfire as soon as i go in to fith gear on steady revs if i boot it its ok, The man who done the rolling road tune sain that the dwel angle is all over the place on tick over and goes straight as soon as throttle is applied. WHY [:^(] [:^(]
needs setting up properly then mate sounds to me like the carbs either want to be fully open or nothing not rejetting as i had same problem with mine
The feed has been taken off the side of the manifold teed off the servo pipe. So i take it that the 1.3 loom is ok to use then?
where have you taken the vac signal from?? behind a one barrel per cylinder carb butterfly can be turbulent place, and different to what the ecu is expecting, the 16v has large inlet manifold, quite a bit of volume there..... if this does turn out to be a prob, there is a vac resovior on the driver models which could smooth things out. M.
just out of curiosity,you didnt have it set up with filter socks on then drive around without them did you? i once lent my socks to a m8 and my car wouldnt drive properly put em back on and it was spot on again.
I dont have filters on yet, Could this be the problem? It doesn't misfire on the rollers but it does when driving.
filter socks rob you of quite a bit of power, but you need something or the engine will be fecked in no time
yep,i didnt wanna risk driving it but had too steved i would of thought it could have been the problem if you had it set up with socks on.not sure though if youve had it set without??? mine just wouldnt rev without them
Well it only misfires on steady driving around 70 ish so would the air forcing itself in the carb make it miss.
may be icing on the trumpets? bear in mind im no expert on this jus hazarding plausable sounding guesses
Thanks all for your help I've now sorted it. To much air intake, All i'd done was put a small peice of mdf behind the gril to reduce the air intake hey presto no misfire, All i have to do now is get some filters.
sorted. id have it set up again though if your gonna use filters which is a must really... i use itg filter socks,got em from demon tweeks about 15 a piece i think? pics a little big
i just read this thread and was about to say if your NOT running filters then its the air flow into the carbs. Mine was doing this, we set it up great on the rollers but drive it down the road and its missed like mad.I did the same as you, a sheet of plastic behind the grill solved it.Now with the sock filters its smoothed it out even more and ive removed the plastic.
