Dead CPS?
#1
Account Disabled
Thread Starter
iTrader: (1)
Join Date: Apr 2013
Location: US
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Dead CPS?
Alright, so I'm stumped at the moment. I just finished my 2.3 build and install into my car, and it just cranks and cranks. Every now and then it will seem like it's going to kick over but nothing. It is getting fuel as I can smell fuel after a little while of cranking, and the spark plugs are covered in fuel.
Could it be the CPS? Everything worked fine when it took it apart. Also, I was told to possibly look at the Crank plate and see if it's on backwards. I don't even know how you could tell honestly. Also, do I need to pull the motor to get that out or check that? I just spent a LONG time putting that in, and really don't feel like pulling it back out. Can someone help at all? I'd like to see my car get on the road ASAP as I have been without it now for 9 months.
Could it be the CPS? Everything worked fine when it took it apart. Also, I was told to possibly look at the Crank plate and see if it's on backwards. I don't even know how you could tell honestly. Also, do I need to pull the motor to get that out or check that? I just spent a LONG time putting that in, and really don't feel like pulling it back out. Can someone help at all? I'd like to see my car get on the road ASAP as I have been without it now for 9 months.
#4
Account Disabled
Thread Starter
iTrader: (1)
Join Date: Apr 2013
Location: US
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
ok, I'll double check the CAS's. Do the CAS's also control the injector timing?
#5
Evolved Member
iTrader: (23)
I'll base timing originates at the crank sensor. The cam sensor determines what stroke the crank is on, a the most basic level.
If you have fuel pump activation you should have spark and injector pulse. There are a few exceptions of course (immobilizer problem, no injector pulse; cam/crank correlation issue can result in spark cut).
You can use a scope to measure your cam and crank sensors to make sure you are getting a full 5V square wave. If you don't have a scope you can use a test meter and rotate the engine by hand to at least see if you get full voltage (won't tell you if the signal is dirty though of course).
Stick to your basics first though...... nothing left unplugged/unhooked, verify spark, verify fuel pulse/delivery, verify belt timing. If it ran before it is highly unlikely you all of a sudden need a crank or cam sensor. Shiat doesn't just go bad sitting on a bench.
If you have fuel pump activation you should have spark and injector pulse. There are a few exceptions of course (immobilizer problem, no injector pulse; cam/crank correlation issue can result in spark cut).
You can use a scope to measure your cam and crank sensors to make sure you are getting a full 5V square wave. If you don't have a scope you can use a test meter and rotate the engine by hand to at least see if you get full voltage (won't tell you if the signal is dirty though of course).
Stick to your basics first though...... nothing left unplugged/unhooked, verify spark, verify fuel pulse/delivery, verify belt timing. If it ran before it is highly unlikely you all of a sudden need a crank or cam sensor. Shiat doesn't just go bad sitting on a bench.
Thread
Thread Starter
Forum
Replies
Last Post
Yazer
Evo Electrical / Audio / Security
8
Nov 10, 2014 01:12 PM
Boosted_EvoVIII
Evo Engine / Turbo / Drivetrain
59
Jul 1, 2014 10:56 PM