Hello , just bought a worked evo (96) Problem is it wont start in the morning , get home at lunch time starts first pop. Runs on 98 oct. Any ideas what could be done! Car runs perfect all day , just the cold start. Its like starting an old escort in the morning with no choke.
a.woodrow,
Oct 12, 2:09am
Does it have good fuel pressure! and get the battery checked - loadtested
dasfi,
Oct 12, 2:10am
My last mitsy did that, ended up replacing the dissy as it was the crank angle sensor or cam sensor from memory, was fine after that
bevharris1938,
Oct 12, 2:15am
Battery and fuel pressure is fine , big aftermarket pump , and new batt.
ola_bitchola1,
Oct 12, 2:17am
you say its worked ! running a aftermarket ecu could possibly be that the cold start tune hasnt be done correctly
bevharris1938,
Oct 12, 2:20am
its running a Reflashed Evo 7 ECU (evoscan)
ola_bitchola1,
Oct 12, 2:28am
could be the problem or the cold start injector isnt working properly
bevharris1938,
Oct 12, 2:36am
motors spec if any help
manley forged pistons - 9.0:1 compression eagle forged h beam rods ACL race series rod and main bearings arp main studs arp head studs 1.5mm cometic head gasket brian crower uprated valve springs genuine mitsubishi cambelt kit including water pump genuine evo seal kit (excluding head gasket) deatchwerks 300lph fuel pump precision 1000cc injectors kelford 272 11mm lift cams sinco customs twin scroll exhaust maifold with IFR 38mm external wastegate with screamer pipe full 3" exhaust from turbo Kinugawa TD06SL2R 25g turbo Large Fenix front mount full 2.5 to 2.75" intercooler piping
savanna71,
Oct 12, 2:43am
What are your injector latencies and scaling!
bevharris1938,
Oct 12, 2:58am
sorry not sure.
savanna71,
Oct 12, 3:01am
You will need to find out as this is more then likely the cause of the issue. When almost doubling the flow rate of injectors the scaling and latencies need to be adjusted before make any load or cold start enrichment map adjustments
bevharris1938,
Oct 12, 3:06am
thanks savanna71 , might be a trip to tauranga to see brent at dynopower then. He told me today if it had a aftermarket ecu , there is a simple adjustment for cold starts. But this is a standard flashed ecu (evo7) so i dont know if there is an easy fix.
40wav,
Oct 12, 3:16am
Since you must be using this vehicle purely for competitive racing this shouldn't be a problem, just race in the afternoons - problem solved.
n1smo_gtir,
Oct 12, 3:21am
not a morning car lol
bevharris1938,
Oct 12, 4:33am
Correct , it's my afternoon car at the moment , morning car is a 93 laser 1.6L automatic.
saki,
Oct 13, 5:35pm
If you dont have any luck check out ,dynopro.co.nz.
bevharris1938,
Oct 13, 10:37pm
Thanks for the info , far to far to travel. I'm in touch with these guys Megasquirt Engine Management Systems 878 McLaren Falls Road, Tauranga
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