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My R32 Sounds Like Wrx

Rocky88

By Rocky88,
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Rocky88 Proficient

Rocky88

Posted
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Posted
Have you done a compression/leak down test yet on the engine?

heh, not really looking forward to that... it that's the case i can just bin the engine...

its getting really hopeless and im even considering getting rid of the car...

list of things i already tried:

- replace sparkplugs

- replace coil packs

- replace injector

- replace ignition module

- check connections on coil packs and injectors

as i already mentioned it's only on 1st cylinder, because if i unplug coil pack or injector on any other cylinder it gets even worse...

one fact that might be helpful is that is started misfiring shortly after i installed walbro fuel pump, because old one was stuffed.

other than that... no clue... tried absolutely everything that could be causing misfire except compression leak...

can you also recommend me any good mechanic in Adelaide for this situation that wont charge me more than car is worth to fix it?

Jet 20 Enthusiast

Jet 20

Posted
Posted

what ecu are you using??

the other day my car rb20det with a microtech was running fine, turned it off for fueling started it up and it ran on 4 cylinders. limped home shut it off then started againg and it ran fine...

check your injector loom for rubbed through wires. maybe when you unplug it, it moves the wires then they touch and earth out again??

another thing you can try is swap #1 injector with # 2 injector and see if the problem swaps to #2 cylinder.

you can also do this with coils to find faulty coils.

RRB20ASH Rising Star

RRB20ASH

Posted
Posted

my pulsar did exactly the same thing as your car,

i know its not the same engine but it might be kinda the same problem.

we checked everything

like it would sould like wrx then it would come right at high speed. but then it would sometimes not....

in the end it was the head gasket.

might wanna do a compression test. get that head fixed asap if it is,

because you dont want it to warp.. try not to drive it much.

  • 3 weeks later...
Rocky88 Proficient

Rocky88

Posted
  • Author
Posted (edited)
Any news on this? Mine started doing it today :D

turned out it wasn't a head gasket... it was a coil pack all along, just a different one... but here's the thing:

When it initially started misfiring i tested each cylinder and found it was first coil pack... so i replaced it, it was alrigth for a day but then started misfiring again and I (idiot) just assumed it was first one again so I tried doing replacing everything on first cylinder; injectors, sparkplugs, loom, ignition module, did compression test... then when i was really desperate i tested each cylinder again, and found out that first cylinder is not misfiring anymore, but it was 6th that time... so i replaced 6th coil pack and now it's running smooth as...

try these steps for your car:

1. when the car is running try disconnecting each coil pack... when you disconnect a working one car will sound even rougher, but when you disconnect a faulty one it will stay same... that way you'll find out which cylinder is misfiring... if all of them are it's probably fuel pump

2. try replacing (in order of most likely in my opinion):

- spark plugs

- coil pack

- fuel injector

- ignition module

- loom

3. if it's none of these do compression test, but as many people already said, head gaskets are rarely an issue

let me know if you have any question... i've just been through all these steps recently so I might be helpful

Edited by Rocky88

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