Please help! I bought my misses a evo 7 gta we've had it for a few years always ran fine, it sat in unstated for about 18 months so the battery died so I replaced it and it was running quite ruff. But we had bigger issues at the time so it just got forgotten about After leaving the vehicle for a while now it won't start at all. I've cleaned all the injectors replaced the fuel pump and relays clean the fuel rail replaced the plugs now have ran evoscan on the car and found 0 faults. I haven't checked the fuel pressure from the FPR after searching multiple post on here ive check the resistor and resistance on my coils and injectors which all seem to be the levels ive seen others have but im coming up empty What am I missing where should I start next???

 

I mean define rough? If the battery died, it will have to relearn idle trims and stuff so it could just be learning unless you have a miss or something going on.

There is a thread around here with the learn procedure as per Mitsubishi but its something like 5 minutes of idle with everything off inside, 5 minutes with the AC on and fan on high I think?

Edit:
I missed where you said it wasn't starting at all. Is it cranking or no? You said you checked coil resistance and stuff, have you just checked for spark? Fuel pressure would also be a good check.

 

check if timing belt skipped.

 

So after the batteey died it was down on power above 2k RPM like it wasn't get enough fuel or something and the revs would drop at idle once hot like it wanted to stall but wouldn't then jump back up, i now assume that wouldve been the car trying to relearn its trim. it is cranking fine I have recently dropped a 560 cca battery into it to ensure I'm getting enough power everywhere I havent checked spark with a tool or the screw driver method simply cause i havent been able to be under the bonnet while getting it turned over although ordered new plug leads last night after finding lead 1 was around 22k ohms which from what I've read means poor resistance and have a fairly new set of ngk bpr7es plugs aswell my next to will be getting a fuel pressure tester I'm currently doing all my work with a basic tool kit with no speciality tool ( FP tester timing light or spark tester)

 

I disconnect my batt multiple times a day and I dont really see it "relearning". i dont have a great SD tune but its consistent. starts quickly every time

 

it sounds exactly like a massive vacuum leak to me how you described the "bouncing" idle, does it run fine when you hold your foot on the accelerator and find a sweet spot where it idles properly? if yes then its almost certainly a vacuum leak. Also I assume you had stabilizer while it was sitting for 18 months or flushed and had new gas added/put in? bad gas will definitely cause these types of issues.

 

When it was runnkng it was exactly like that if i held it around 1500 itll be perfect but it hadnt crossed my mind to check for vaccum leaks, yeah so after i replaced the battery and it wouldn't fire I dumped the tank and replaced the fuel at the same time as replacing the fuel pump

 

“when it was running” sorry I didn’t realize there is still no start. Still check for vac leaks but I doubt that’s the problem it if there is no start. Only thing would be the biss screw adjustment is off but that shouldn’t have been an issue if nobody touched it.

lots of good suggestions to check for in this thread but it would be nice to have a video of the start up attempt. It’s hard to gauge without more info: Is there smell of fuel? Absolutely no life or smoke from exhaust pipe? Just the starter motor rotating the crank? If so you have no spark.

 

I do appreciate all the assistance so far with my issues ill get it back to TDC tonight after work and first check I haven't skipped a tooth and my timing marks are all in check so I don't end up damaging the valves, incase this is a issue and once I have decent daylight I will get a video to post to the thread of the crank no Start issue, I already have the cam cover off so it should be too nuch of a problem, I haven't really looked at the exhaust at all so I will also keep a eye out for any indicators from there while I check other things till my leads are delivered

 

Finally get the time to get jack stands under the bishi to turn it over by hand to check the timing marks all lined up, f**k you need xray vision to get a perfect alignment on the crank pulley but tell me if I'm wrong that should be -5 degrees BTDC the cam marks are slightly off both intake and exhaust rocker cover marks. As you can see in the photos. But I feel like that means it's retarded rather than advanced. I'll put up a short video of cranking today aswell. I feel like I'm missing something simple


Exhaust cam

Intake cam

 

here's a cranking video, hopefully it helps a few of you blokes helping me with my problem

 

^ Uh oh, yea now im seeing a timing issue. It seems engine cant build compression and startup. There is smoke so you're getting spark and fuel. appears hydro locked or bent valves would do this. Will it not continue to turn over if you hold key in the start position?

 

yup that skipped

 

It will continue to crank if I keep the key at ON position I just haven't been cranking it continuously to try not to burn the starter out aswell as. If there a easy way to fix the skipped issue or do I need to follow the service manual and pull everything out and pull the belt and start again?

I appreciate all the input fellas

 

okay yea, skipped timing. Time to start disassembling the head. If it didn’t bend valves the car would still start with rough idle. Unfortunately with a no start it means it needs a rebuild.