Tennessee Car Forums at TennSpeed banner
1 - 20 of 20 Posts

· Registered
Joined
·
119 Posts
Discussion Starter · #3 ·
he has a new motor and turbo, new plugs/wires....was told by some tech that he needed a new ecu maybe...


but the problem is that it's only running on 2 cylinders and he isn't sure why.
 

· OG founder
Joined
·
5,388 Posts
I have a 95 gsx

check the most basic things first.

Make sure its gettings spark.
Once you check that,
Make sure its gettings fuel,
then let us know.
Im not as stupid when it comes to cars as most think.

Also check your timing, And see if anyone else has an ecu.
 

· Registered
Joined
·
119 Posts
Discussion Starter · #6 ·
i'll ask him all these things. he's talked with someone at mitsu and they think it's something electrical. i know NOTHING about dsm's. haha
 

· Registered
Joined
·
237 Posts
You should also ask if its a 7 bolt? Or does it have a 6 bolt swap? The firing order is different if they put a 6 bolt in it. Beyound that i would do a compression test after you try what everyone has told you about in here.
 

· OG founder
Joined
·
5,388 Posts
Could be the same thing as my grandma's car.
Missing.
had spark,
had fuel, checked the fuel injectors and swapped them.
comp was low, it ended up being the valves
 

· Registered
Joined
·
237 Posts
Jose-Aka-Pedro said:
Could be the same thing as my grandma's car.
Missing.
had spark,
had fuel, checked the fuel injectors and swapped them.
comp was low, it ended up being the valves
Yeah really depends on where he got the motor and such also. But a compression test will tell you alot after you make sure your getting fuel and spark.
 

· OG founder
Joined
·
5,388 Posts
yup.
lol when you get, 160, 160, 159, 112, lol somethings fuked up. :lol:
 

· OG founder
Joined
·
5,388 Posts
If its only getting spark to two then he needs to check a few things,

Spark plugs, and their gap.
The wires. (Just because they are new doesnt mean their good, Although VERY rare, they can be bad new)
Check the ignitor and the transistor pack
Also check the mpi fuse
Also check the CAS (depending on year)
 

· Car Junkie
Joined
·
712 Posts
dsmvr4 said:
The firing order is different if they put a 6 bolt in it.
I've never heard of any Inline-4 not having a 1-3-4-2 firing order. They both use a wasted spark setup and have the same firing order, but they do have slightly different coil packs.

Is it throwing any codes?
Are the two non-firing cylinders on the same coil pack?
Does the tachometer act strange, when it is misfiring?
 

· Registered
Joined
·
89 Posts

· Car Junkie
Joined
·
712 Posts
It's still going to fire 1-3-4-2. What's being covered there is just a quirk of the different CAS between the 6-bolt and 7-bolt blocks. So he's rewiring the coil packs to correct an inverted CAS signal to get the same firing order. :)

Regardless, this wouldn't cause plugs not to fire, just fire at the wrong time.
 

· Registered
Joined
·
89 Posts
Whatawookie said:
It's still going to fire 1-3-4-2. What's being covered there is just a quirk of the different CAS between the 6-bolt and 7-bolt blocks. So he's rewiring the coil packs to correct an inverted CAS signal to get the same firing order. :)

Regardless, this wouldn't cause plugs not to fire, just fire at the wrong time.
True. Any update on the issue? Is this thing even a 6 bolt?
 

· Registered
Joined
·
119 Posts
Discussion Starter · #20 ·
he still has the car in philly, and will be getting it soon. he just wants to know where to start when he gets it down here.
 
1 - 20 of 20 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top