need help with my ca18det swap!!

[evanpower240sx]

just swapped a ca18det into my 1989 240
in acc 2 the fuel pump does not prim, and when cranking its not pumping.
when i stop cranking the fuel pump kicks in for about 3seconds.
when i crank it all it does it turn over no sputtering or back fires nothing.
check for code and got code 55.
tried putting a constant 12volts on the fuel pump wire at the ignition but it didn't do anything.... did it to the starter and other things at the ignition and they all worked.
what did i do wrong??

[boost_boy]

Very hard to tell what you did wrong if we can't see what you've wired and where. It's definitely an issue with the way you wired it. Be wary of the way you wired the orange wire to the dash conector .

[evanpower240sx]

hey!
thanks for the reply i found out it was the wiring not i have fuel!
but no spark!
what should i be checking for spark?

[s13drifter88]

check and see if u have power to the CAS and signal coming from the CAS. Also check the ignitor if the CAS reveals no solution. Most possibly in the wiring but could be faulty part as well.

[boost_boy]

hey!
thanks for the reply i found out it was the wiring not i have fuel!
but no spark!
what should i be checking for spark?

Do you have an ignitor? Please check and make sure because if there's no ignitor, there won't be any spark.

[evanpower240sx]

got spark now it was in the wiring.
so i have my ca18det running but have not wired in the knock sensor the wire from the knock sensor gos to a plug that kits the coolant sensor and i can find any other plug that will fit the coolant sensor!!
can anyone help me out i have no idea where it plugs in!
the is one just like the coolant sensor under the fuse box but they are both male plugs so i need to wire it to the plug under the fuse box??
thanks!

[mical]

1st off you fitted a ca18det Fail fit a sr20det for the price id go sr20

2nd if you put 12volt live to fuel pump and not work then i reckon the pump faulty

3rd how do you get code 55 if you haven't wired in temp sensor or knock sensor you should be showing codes for those 2

4th and i don't think the wire that goes to the knock sensor goes to the water sensor they on 2 diff harnesses all together

[roast]

1st off you fitted a ca18det Fail fit a sr20det for the price id go sr20

2nd if you put 12volt live to fuel pump and not work then i reckon the pump faulty

3rd how do you get code 55 if you haven't wired in temp sensor or knock sensor you should be showing codes for those 2

4th and i don't think the wire that goes to the knock sensor goes to the water sensor they on 2 diff harnesses all together

1st you're posting in the ca18det forum and welcome to your opinion, we just don't agree with you... regardless, we have thick skin and won't argue the merits of the CA vs. SR.

2nd the cars running, the fuel pump is working

3rd is this advise speaking from experience with the ca18det ECU?

4th you're right, the knock sensor is below the intake manifold plugged into the lower harness, the temperature sensor is up top which sits between the throttle body and intake cam. OP, there is a 2 wire temperature sensor and a single wire that feeds the temp gauge in the cluster they're both in the same visinity.

[mical]

ive had a ca for 5years

thats fine if the pump is working now i was just replying to original post saying he put power to the pump

yes again ive had a ca for 5years know it inside out

yes sameish area but diff looms and yes two temp sensors one for the ecu and other to go to the dash

[mical]

and im not trying to be a d!ck just giving advice from what i understand in his post

[evanpower240sx]

1st off you fitted a ca18det Fail fit a sr20det for the price id go sr20

2nd if you put 12volt live to fuel pump and not work then i reckon the pump faulty

3rd how do you get code 55 if you haven't wired in temp sensor or knock sensor you should be showing codes for those 2

4th and i don't think the wire that goes to the knock sensor goes to the water sensor they on 2 diff harnesses all together

1st you're posting in the ca18det forum and welcome to your opinion, we just don't agree with you... regardless, we have thick skin and won't argue the merits of the CA vs. SR.

2nd the cars running, the fuel pump is working

3rd is this advise speaking from experience with the ca18det ECU?

4th you're right, the knock sensor is below the intake manifold plugged into the lower harness, the temperature sensor is up top which sits between the throttle body and intake cam. OP, there is a 2 wire temperature sensor and a single wire that feeds the temp gauge in the cluster they're both in the same visinity.

i cant figure out what wire gos to the coolant temp sensor what color?
im assuming it under or around the fuse box?
thanks for the help!

[mical]

the wires that go to the coolent temp sensor are in the top loom its 2 wires one ground and other one is in the top loom

the wire goes to pin 28 for the + side and 30 for the - side the wire is blue with orange stripe

hope this helps

[evanpower240sx]

oops i think its the wrong name for the sensor im talking about!
im talking about the one in the coolant hose's where does this one plug in?

[mical]

oops i think its the wrong name for the sensor im talking about!
im talking about the one in the coolant hose's where does this one plug in?

ok whoa

there are only 2 coolent sensors

1) is a 2 wire sensor (connects to ecu very important or comp will go into limp mode) goes to pin 28 and ground(pin 30)

2) is a single wire that goes to a blue wire (this is for the dash display)

thos are the only coolent sensors on a ca18det mayb you have a aftermarket one in a hose somewhere

because bothe those sensors are right next to each other by cylinder 1 injector

cant you take a pics

[evanpower240sx]

the rusty thing lol what is that and where does it plug in??
has the male plug and the knock sensor has the female plug and they fit to together but they don't go together right?
btw my ca starts easy but runs like crap and dies unless i keep it at the right throttle position until it gets warm then runs good what would cause this?
thanks!!

[mical]

to be honest ive never seen this so i think its a aftermarket fail

here are the two coolent sensors on my ca



the blue one the wires are Blue/orange and black ground
then the other one is just blue
and the knock sensor

two total diff plugs

what is causing your problem is the water collent sensor the 2wire jobby thats blue on my ca yours should be red or yellow
if this is gone your comp goes in like a fail safe mode and sucks at cold start so fit it asap

and that pic i think its a after market fan switch for the electric fans

[ragenasian]

I have one of those rusty things that came with an aftermarket temp gauge but yours looks like it has been wired for something else. Maybe like "mr. sr" said for fans or something.

[mical]

yip i rekon its a fan switch

so toss it in the bin if yo using the std clutch fan

[evanpower240sx]

ok thanks for clearing that up for me!
i did a compression test and got around 100psi on all 4....
what would cause low compression?

[mical]

ok thanks for clearing that up for me!
i did a compression test and got around 100psi on all 4....
what would cause low compression?

rings
valves not sealing
valve seals leaking
head gasket gone

there could be alot

you min psi should be 140 and max should be 171

[evanpower240sx]

im 100 or 110wet across the board :S
what should i look for?

[mical]

to me if you increase with wet then your rings are gone

[boost_boy]

im 100 or 110wet across the board :S
what should i look for?

Or your battery is really low or you're not doing the compression test correctly. Rarely will you find all four that low, but even at the same time. I think yo might want to check with a fresher batter or perform the test in a more correct fashion. But if you ar sure you did the test correctly, then it is time to tear the engine apart and refresh worn components.

[newtonty]

forgive me for opening up an old thread, but i thought i must point out that ~100psi is what your CA will be COLD. so if you did not fully warm up the engine and expand the rings around 100psi is right if they are all the same within 5 psi. i compression tested mine with a cold engine after dropping a bolt in the cylinder (removed it first) and got 95's across the board. scared the s*** out of me.