delorean6584

i wil double check for stuff on the intake, but all hoses are new, how do you do a intake leak test ? if i put pressurized air in the intake it will leak through the cylinders ?

Hi all, i have a 2nd trouble with my ms wich is somewhat fun.... the engine cuts at 4500rpm ! i checked all the megatune options(including the rev limiter) but nothings is supposed to cut ! fuel and spark maps are all good to 7500 but the engine did not revs up 4500, i didnt noticed it before because i didnt ride the car much and wanted to slowly tune the maps before... the dizzy is off a 82 turbo connected as mobythevan diagrams, the ms timing is good megatune rpm shows exactly 4500 when it cuts, my lc1 gauge shows fully lean when it cuts but if the fire cut then no fuel is burnt ? anyway what component could do that ? i mean if the dizzy runs fine, the wires are okay it need to be some tuning in MS ? anybody ran across that ? yan

thanks for the hints, the best description of the sound is a howling as stated above, a HUGE howling, i have the stock setup for the wastegate, but maybe something could be bad in there cause the sounds is in relation wih the boost, i raised the boost with a manual boost controller, but does the same sound when i didnt have it, i removed the stock safety valve that opens at 11psi as for the head temp sensor, it doesnt act funky in MS it is just hotter than the coolant by 10 degree wich i attribute to the fact that head is a little hotter than coolant, and cylindre 5 is far from the t-stat housing...

hi all ! i drove the car to one of my friends who work on turbo cars and said that its definatly not pinging, so i am really sorry for all that confusuion (i guess we learn each day!!) for tuning up the maps i use the map table wich isnt useless cause it is not automatic i use the afr gauge though for readings, so the fuel map is good along with the spark map the sound is very strange though, its like a whisling but very hard and loud a very loud squealing more like a bypass or something similar, i just dont know what, maybe tomorow i will try to remove the egr valve and install a block-off plate instead again sorry for searching with a false symptom, but atleast i have learn how to tweak megatune tables and the engine have no damage as for the sound maybe someone already got something similar ?? yan

thanks for clearing that up ! but now i am tottaly out of ideas !!! i put colder plugs on the engine, put high octane gas in the tank, tried to lower the advance by 10degree, wich gives pinging at 9degree of advance ????, i also tried to up the fuel to 9:1 air/fuel and i still have pinging issues depending on the gears it begins to ping from 7 to 13 psi(boost gauge) cooling system is all new, head temp and intake air temps is good too... i just can't figure it out...

hi all, did some testes today, i reduce all the timings, now pings occurs after 13psi of boost, but still like at 22degree of timing wich for me seems low enough....i replaced my head temps sensor but realized that it is not a coolant sensor, no coolant in there, so i am sure it is normal to have more heat on the head than on coolant i am now on my way to replace the plugs for colder ones

hi, the connections for the ecu are good i made the wiring and i have magasquirt, for the head temp sensor it find that weird too, when the coolant is cold its accurate so i beleived that it was also accurate when hot....i have another one laying around form a known working car (values when cold are the same...) but it will replace it right now, as for the timing goes, megasquirt decide of the timing all values are now maximum 24degree so it shouldnt be detonate ??

for the head temp sensor it reaches 212 before the termostat opens, then stay like 200 or less on hard driving, i also filled the tank with high octane gas...didnt helped much... still have hard pinging over 10psi of boost, i also tweaked the table and reduced all the timing, when it begins to ping it have 24degree of advance 10psi of boost and about 3000rpm...fuel always stays in the 11 to 1...i am lost with it ? do you guys have a some ideas oh and tomorow i will get colder plugs too i now have bpr6

i have bpr6y from ngk right now... how much timing down should i go with ? the cooling system is all good, new radiator, 180 thermostat, new coolant, i also noticed that my head temp sensor is showing 212 degree faranheit in megatune...i imagine the head is hotter than the rad...do you have the same ? heres my timing map

Hi all, i finally got able to drive the car all week long to tune the megasquirt on my 280zx !! under low boost/vacuum ive been able to acheive great results, got the air/fuel to about 12-13 all the way, then 11-11.5 under all boost conditions, the thing is that i have alot of pinging over 10psi of boost wich in 4th gear is like 2500-3000 rpm, its very low so i cant imagine at WOT !!! i used the metro tables for timing and fuel, i only tweak it by 1 or 2 points under 100KPA wich the boost begins, so i know that i have enough fuel caus its about 11 to 1 when it pings and between 26 and 30 of timing...i also have about 82 degree faranhiet as intake temp i am also very confused about the psi to kpa !!! the map sensor in megasquirt is connected at the same place as my boost gauge...0 psi (say just after vaccum and before beginning to boost i have 100kpa on megasquirt....but if you convert 100kpa in psi it gives 14 psi ???? what the ? any ideas ? my setups is : stock 1982 l28et megasquirt II v3.0 stock injectors/turbo/wastegate etc... custom IC piping godpseed intercooler greddy blow-off valve custom boost controller lc-1 wideband gauge (not connected to ms2)

yes but they are all for modified engines and yes i am from quebec !!!

yes sorry i forgot that ! i have msII pcbv3.0 with 2.88 code in it, i dont have any o2 sensor for now, i have ordered a 230$ one just like the link above...i would like to have something drivable to be able to move the car and install the exhaust system

Hi all, i finally been able to start my engine with the megasquirt, now i would need some maps for timing and fuel for the stock setup, no mods at all ! i check the sticky thread but all setups are bigger than mine so maybe someone already done that to a stock one ! thanks alot guys! yan

Hi all, i have all connected my ms2 ecu to my wiring, gauges are okay, sensors too, but the thing is....i jump the boot jumper, load the code with downloader 2.0, then shut down the ecu, replace the jumper, then put it on...light is on megatune see that i am cranking etc...., if i shut it off to get it on again the light never comes on, i need to reboot the code again and again... is it normal for this light to be off ? or it should be on when there is power to the ecu? thanks

no i have a new custom wiring, but i had injectors 1-2-3 positive together and 4-5-6 pos together just like the original, they were supposed to be fused and thats all....now i have to split these wires and get each one out of the resistor pack

ahhhh darn.... i had finished the injectors wiring.....so i need to cut all the 6 positive feed for the injectors to wire the resistor package... i had connected it like the 1983 stock l28et.... live and learn i guess

and is the stock resistor package a 2 wire plug-in ? and how i wire it up ? in parallel or series with the enjectors ? positive side ?

would it be easier to get 81 resistors? or i only needs like 2-3 standard resistors

anybody have a shematic of how to wire it up ? i dont have any resistor now but could buy some from radioshack then make my own... but i dont have any value or how to connect it ? yan

hi all ! i'm building my megasquirt for my stock l28et and i'm in the process of connecting the injectors, i have ms2 v3.0 there is alot of confusion about injector impedance and using dropping resistors ? i read somewhere that the ms2 ecu can handle both but anybody had great experience with that? thanks yan N.B this week i will post pics of my 280zx freshly painted with hybridZ logo on it hehe