Cheers guys il give this a go for now and go from there can't really do much as its off the road at the min tho
Cheers guys il give this a go for now and go from there can't really do much as its off the road at the min tho
right i seem to have a missfire at 3100rpm with next to no load. The afr's are 13 and the spark adv is around 26deg btdc this all seems ok to me is that correct?
I have removed the plugs and cleaned them, I did notice that cyl 2&3 were fouled up alot more than 1&4 so running rich on those cyls. Is it possible i have wired the injectors wrong as i thought if i had it wouldnt run at all?I have a spare set of injectors i can try and was thinking of using them anyway as i think they will have a better spray pattern than the ones im using at the mo.
The leads, rotor and dizzy cap were new about 2years ago and all look ok, Anyone got any good ideas where to start?
How is your tdc sensor mounted?
It's one of scoffs I just cut up a piece of angle bracket and drilled a hole its aluminium 1" angle and about 1.5mm thick. I think I have a pix of it somewhere.
Reason I ask, is just in case the bracket is vibrating and causing some probs for the sensor signal.Originally Posted by SCHWARTZ
Here Are
It seems quite sturdy I may try doubling it up if it feels wobbly. The plug for the sensor does hit the water pipe. I'll get a pix when I get a bit of light.
Personally, I'd be inclined to beef that up. Possible steel angle as opposed to alloy.
Agreed, that bracket will definitely be vibrating. Go for the steel equivalent and possibly add a gusset brace or two.
Cheers fella looks like il be getting my self some steel angle then
Worth a try and shouldn't cost the earth as you have a pattern to work from already.
Yeah hopefully this will sort it as everything seems to be ok. I will report back when I have tried this. Cheers mat
Right had a look at the bracket and it seems sturdy enough. I revved the engine up to 3100 whilst holding the bracket and tdc sensor to take away any vibrations and it still missed
Sorry if you already checked, but are you sure polarity is correct ?
You have no funny launch control or cold-engine rev limiters set ?
Over boost kpa isn't set at 100kpa or something daft ?
You're using twin core screened ?
Air gap between sensor and flywheel is less than 2mm ?
It's 60-2 and not a siemens clio 172 pattern flywheel ?
Software is definitely set for 2 missing teeth ?
Just thinking out loud, I'm sure you've checked all of this already
All is fine except for the launch control which I was thinking about when I was writing the last post.
Think I'm going to cut the switch off(has diodes wired in) and see if that is the prob as everything else seems fine
I have my launch control set as;
Retard ign above- 3500rpm
Retard to- 15deg
Enable launch when throttle over -40%
Hard rev limit- 4800
Variable launch- on
I'm sure its something to do with the switch or these settings do these sound about right? Also there are flat shift options but I have no idea what to set them at and don't really want them coming into play so have just set the values silly high, is that ok?
Now changed rpm set points to 2800 and 3800 so both down 1000 rpm on both values to see if it makes any difference.
Don't cut the switch, you can simply turb them off in tunerstudio or put in way too high values.
I will try setting the values way too high first but they shouldn't come into play at all if the switch hasn't been pressed, should they? So I'm thinking its the diodes connecting the +&- together are poss the wrong way round.
Dropped the tdc sensor down and all is solvedIt is extremely close to the teeth to the point where for the first couple of revelotions it was scraping on the teeth, even though it has only been dropped a tiny ammount not even 1/2mm.
apparently that does the job
sounds like a bad connection or dodgy sensor if theres a poor signal? The gap shouldnt need to nearly touch.
It's a brand new sensor and plug from scoff and I soldered all the connections using screened cable. I wonder if its just that the ms is poor at reading the signal
Right so the car revvs up well and didn't miss at high rpm, but I have to press the throttle very gently from idle for it not to miss. After a second or so it will smooth out and rev very quickly but there's an initial hesitation.
Thats map and transient related. Welcome to the challenging world of accurate mapping
Don't worry about transient for now. Get your fuel table done - and by done I mean including load cells above idle and at every other rpm too, at least up to 100kpa. Then you can think about transient settings. There's no point in trying to dial in transient when the cells of the map you're jumping in to are not calibrated.
Cheers Chris. Looks like I have done all I can do for now then, until the cars ready to go back on the road
right i have finally got the car back on the road and i want to start mapping it. The car seems to drive well but it is rich, this is no problem to sort but its the spark map i'm worried about. I want to get the fueling map good so i can drive the car around for a bit then get it mapped properly on the rollers when i have the cash. Does this spark map look safe to sort the fueling on?
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chris i know last time you said it looked safe but just want to confirm as i cant think if it has changed at all
right done a bit of mapping looking at other spark tables for the b18ft on the net and come up with this. Im getting some kind of miss fire when pulling hard in second gear it hits 5500rpm then i get loud pops and bangs so i let off, if i rev up slowly its ok. I have a knocktek and im wondering if i need to ignore knocks over 5000rpm or something like that due to engine noise?
would a little more advance help? i was woried about knock so had it a little more retarded that other maps.
also fueling was in the 12s when this happened
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