Evo 4 died :(

[Snowdog]

Long story short, I took her for a spin and the engine cut out mid rev range. I bought her to a stop and she turns over but won't start.





But there is a history that might help. Someone was poking around under the bonnet a few days ago and then took the plug out of cylinder 3 and earthed it against the rocker cover to check the spark. They said it was a weak spark but also noticed that there was an arc going from the coil back on cylinder 2 to the rocker cover. He said it would need changing.

Anyway, because of the nature of the stop I naturally checked the cam belt. Was ok. But I was curious about the coil packs so earthed out number 3 cylinder again but when trying to start there was no spark and no arcing...

Just a replacement coil pack?
Would the car start anyway on 2 cylinders (running poorly)?
Or has I lost something further down the ignition line?

All other electricals are fine.

 

[McFall1984]

could possibly be a coil pack

 

[supamario666]

These very rarely start if a coil pack goes down due to the earth fault present!

I have a set of coil packs if needed with leads!

 

[raph]

I say crank Sensor is dead If it only turns over but doesnt run.

If the cam Sensor dies,it will start and tick over for 3-5 before dying.

Or the timing belt jumped/balance belt and killed the crank sensor.

 

[Snowdog]

Thanks guys, i'll replace the sensors mentioned anyway just to be sure. Supamario i'll PM you. I'll update asap with the outcome.

 

[raph]

Well before you replace,check to see if there is a fualt code first

 

[Snowdog]

Well before you replace,check to see if there is a fualt code first

Good idea. Is it worth buying a reader off EBay or should I bite the bullet and go dealership?

 

[raph]

You can flash out the code bridging pins 1+4 on the diagnostics port, there is a how to on here , with a code list .

 

[evilee]

what obd port is a evo 4 :hm:

 

[Evomad4]

just read the codes your self m8 quick and easy just follow this to see/read if u have any Evo

this is the fault code list

1 Engine control module malfunction
11 O2 sensor malfunction (Car usually runs weak when this code appears) (If a V6 this relates to the O2 sensor on the drivers side In a 4x4 Or the one at the back of the engine on a Galant)
12 Mass air flow sensor circuit malfinction
13 Intake air temperature sensor (Comes on if you have chucked the sensor away to fit some big fancy K&N induction kit!)
14 Throttle position sensor fault
21 Engine temp sensor malfunction (Check the spark plugs too because they carbon up if this sensor is causing the car to run rich)
22 Crankshaft position sensor (Try cleaning the dirt off the end before replacing)
23 Camshaft position/distributor hall sensor (Common on Galant 1800)
24 Vehicle speed sensor
25 Barometric pressure sensor (Another name for the MAP sensor)
31 Knock sensor circuit
36 Ignition timing adjustment connector fault
41 Injectors circuit malfunction
44 Ignition coil/ignition amplifier cylinders 1 and 4
52 As above for 2 and 5 (on a V6)
53 As above for 3 and 6 (On a V6 too)
54 Immobiliser control module to engine control module malfunction (comes on if you have changed one or the other and not had them programmed in by Mitsi)
55 Idle speed control actuator malfunction (A good injector cleaner and a thrash up the motorway usually fixes this!)
59 O2 sensor (if you have a V6 this is the sensor on the passenger side ona 4x4 and the one at the front on a Galant etc.)
61 Transmission control module/engine control malfunction
62 Intake manifold air control actuator/position sensor malfunction
64 Alternator malfunction (remember to check under load and when revved up)
71 Traction control vacuum solenoid malfunction (check the pipes for leaks)
72 Traction control vent solenoid malfunction (usually blocked with dirt)