Starts.... but thats about it.

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

It starts up fine, but I took it around the block and all hell broke loose.....

It bucks, stutters, is not responsive to the throttle.... won't rev freely. And it sounds like the turbo stops boosting after about 3000 rpms. I don't know what the problem is.

Also.... it smells very hot by the turbo. I am assuming this is from the new downpipe and its just burning the coating off it. But then I also hear a very feignt "gurgling" sound by the turbo too.

Any ideas? I didn't hook up the stock wastegate solenoid under the ignitor. I am going to hook it up when I get home today. Does this thing actually have to be hooked up?

Joe

Post by **boost_boy** » Sat Jul 12, 2003 3:09 am

Pay attention to this, your AFM isn't hooked up correctly. Look at your ecu harness and make sure that all white wires are connected properly. Alot of times, previous owners of these engines have turbo timers and AFCs hooked up to their cars and tap off the MAF wire and a few other wires off the computer. When they get rid of the car, they either take off the devices and leave the wires unsecured or the scrap yard removes them and leave the wires unsecured. That definitely sounds like a MAF issue there.

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

boost_boy wrote:Pay attention to this, your AFM isn't hooked up correctly. Look at your ecu harness and make sure that all white wires are connected properly. Alot of times, previous owners of these engines have turbo timers and AFCs hooked up to their cars and tap off the MAF wire and a few other wires off the computer. When they get rid of the car, they either take off the devices and leave the wires unsecured or the scrap yard removes them and leave the wires unsecured. That definitely sounds like a MAF issue there.

Dee,

It just feels like it is dumping fuel.... but not sparking enough. Almost like if you would just unhook the intake pipe from the throttle body. I'll run some voltage across the MAF wire and check. Thanks!

Joe

Post by **slw240sx** » Sat Jul 12, 2003 3:09 am

joe, the waste gate thing doesnt need hooked up, just make the line go from turbo housing to the wastegate, get rid of that line goin intot he intake.

also make sure your turbo is free spinning still, check your timming,

ummm check those wires on the MAF..... idont think i wired it wrong but maybe i did. ooops! i wish i would have rememberd to ask to borrow your MAF for a second. that way i could see if it was good or bad, if its bad let me know i have a spare one.

also take it apart again and make sure i didnt break it when i took it apart, and spray off thoes filiments with brake cleaner while its apart.

did you change the O2 sensor yet? check all the fluids again.

sounds like MAF and or Timming is way retarded... im guessing you fooled with the Crank angle sensor when you had the motor out, get a timming gun on it and check it, move it to 15btdc

Post by **slw240sx** » Sat Jul 12, 2003 3:09 am

IM Me

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Jon,

Stuck at work.... can't IM ya until I get home at 6:30.

I don't think that wastegate solenoid would really make a difference though, but it's just that I can hear it spool up and then at about 2800 rpms it stops spooling. And when I shifted into second it sound's like I have a BOV, and I don't.

But I think it may be the MAF sensor. Did you adjust the mixture screw on it or not? I don't remember if you did or did not.

Still planning on going to the cruise tonight? I, obviously, am not going to be able to make it this week. I have GOT to get my car running.

Joe

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Wires on the MAF sensor are good. They are hooked up correctly and there is continuity between them. No cut wires by the ecu either.

It will drive... but is a dog off the turbo, when the turbo finally spools up, it will boost to about 4000 rpms, falls on its face, and NO power above that. I can put the throttle to the floor and it does nothing.

Also. I hooked the boost gauge off the Fuel Pressure Regualator and it will not give me any readings either. No vacuum, no boost, no movement.

..... starting to feel like you Jon

I'd hate to ask... but, when's your next day off?

Joe

Post by **slw240sx** » Sat Jul 12, 2003 3:09 am

lol...... Did you check your timming?

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Kevin forgot his timing light :bash

I am going to do a few things tonight when I get home to see if it helps....

Install Walbro....bypass intercooler... (may be leaking or my connections could suck)

Also... the rear coolant lines are the ones that are gurgling. It sounds like the coolant is boiling inside of those lines.... gggrrrrrrr

Joe

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

USDM_OneVia wrote:Kevin forgot his timing light :bash

I am going to do a few things tonight when I get home to see if it helps....

Install Walbro....bypass intercooler... (may be leaking or my connections could suck)

Also... the rear coolant lines are the ones that are gurgling. It sounds like the coolant is boiling inside of those lines.... gggrrrrrrr

Joe

My rear coolant lines (the heater core ones) boil too. I dont know why.

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

sounds kinda scarry huh? like it will go kaboom any minute...

Joe

Post by **boost_boy** » Sat Jul 12, 2003 3:09 am

Your coolant lines are boiling? Hmmmm, that's strange.

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Just sounds like its boiling.... haven't verified that it is yet. But the coolant line that is coming from the upper radiator hose that goes into the coolant pipe under the intake manifold goes to the upper fitting in the heater core and the one that goes into the block goes into the lower fitting right? Just want to make sure that I have the lines ran right. It only took 1 gallon to refill the system, and when I replaced the radiator in the other 240, it took damn near 2 gallons to replace. There might be a MASSIVE air bubble in the system somewhere, but there isn't a bleeder valve that I have found on the water neck.

Also my CAS is making a grinding noise, kinda like the KA timing chain rattle. Very odd.... maybe that is my problem, not getting spark to the plugs.

I can drive it at light throttle below 4000 rpms, but if I give it a little gas or take it above 4000... it falls on its face, NO power. I don't know what the deal is..... *sigh*

So much for getting the motors swapped in 3 days.... I'm on day 14 now.

Joe

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

Hell yea, my cooling system didnt take much coolant to fill. Defiantely not as much as the KA. I though the thermo. might be faulty but sure enough it still works

Post by **boost_boy** » Sat Jul 12, 2003 3:09 am

Quote »Also my CAS is making a grinding noise, kinda like the KA timing chain rattle. Very odd.... maybe that is my problem, not getting spark to the plugs.[/quote] If your crank angle sensor is making noises "Joe" then I would definitely suspect the crank angle sensor or the spline drive on the exhaust camshaft. I've had this happen on my CA16 and my my timing was everywhere, but the right place. Check this and let me know what you find.

Post by **CA18Fastback** » Sat Jul 12, 2003 3:09 am

i've got a spare CAS for sale if you want it :-d let me know

-Ian

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Motor is still under warranty..... should be covered. But I will let you know if I need it. Thanks!

Joe

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

Atleast the gasket that goes between the turbo and manifold didnt break into pieces and fall into the turbo, therefore causing it to lock up making you think you really screwed it up and have to spend a few hundred bucks on a new turbo

Going to take the turbo apart now to see what the true damage is. Turbo still spins freely and has no shaft play. Only thing it did was let out bluish/white smoke. Until the pieces fell in on saturday

Post by **slw240sx** » Sat Jul 12, 2003 3:09 am

joe, if you took the CAS out you may have knocked the timming out of wack or it may have not gone back on correctly, also the CAS has the ability to adjust the timming a great deal, dont think it can only be off a little, it can be off up to 30deg or so.

pull the codes

check your FSM it will help explaing how and what to do , use mode 3 or 5 i think it is, IM me if you have more questions as how to do it

Post by **boost_boy** » Sat Jul 12, 2003 3:09 am

Quote »Atleast the gasket that goes between the turbo and manifold didnt break into pieces and fall into the turbo, therefore causing it to lock up making you think you really screwed it up and have to spend a few hundred bucks on a new turbo [/quote] The biggest issues with most CA18DET turbos is that they'll eventually get you one way or another. They are prone to fail purely from age and from sitting; then all of a sudden some guy or girl half way around the world purchases the engine and treats it like it's freshly off the factory assembly line. I've never had a turbo survive longer than 3 months on any of my engines. When they started smoking, I finished them off (overboost). I don't recommend this though because I had multiple engines to play with and didn't mind seeing what a CA18 and it's turbo's limit was.

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

If it last 3 months then that would be perfect. I'll have a new turbo and bigger injectors by then. I'll finish the little bastard turbo off.

Post by **GotBoost4Yall** » Sat Jul 12, 2003 3:09 am

What was the gasket made of Kevin?? Most likely it should be a metal between the turbo manifold and turbo, the flange gasket. If it was metal and got hot enough to burn up to pieces then those EGTs must of been up there. When I had the Talon it was the Cam Angle Sensor that was loose causing it to sound like breaking glass,glowin red manifold. Sounds like them bearings in your turbo got owned. Did you put it back on and test it? If it is working, you is lucky. Did you see any debris flying out the exhaust??LOL

Post by **fredb** » Sat Jul 12, 2003 3:09 am

I'm suprised nobody's mentioned this yet, it sounds like you've got a simple boost leak. Check out all your intercooler pipes and connections, make sure none of your pipe connections are loose or slipping off. Also inspect your IC to make sure it doesn't have any holes (take it off and fill it with water and check for leaks if you have to). I've had many boost leak problems and this sounds like a boost leak, you've got text book boost leak symptoms.

fredb

Post by **slw240sx** » Sat Jul 12, 2003 3:09 am

yeah i got a boost leak now, it sucks majorly! car sputters and jerks under moderate boost then at 10psi it goes but i leave a smoke trail like a old fasion train.

Post by **GotBoost4Yall** » Sat Jul 12, 2003 3:09 am

Your car is probably hitting fuel cut because of the wastegate is staying closed. I had the same problem when I had my Talon, at low rpms it was fine then after 3k it would buck,after playing with it in the garage I saw the wastegate actuator wasn't working at all (the actual arm that opens the wastegate)was stuck closed. I sprayed some wd40 overnight into the wastegate actuator and spun the arm round and round and pulled on the arm simulating the movement of it. Tested the next day and was working good. Is your boost control solenoid hooked up right?

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

GotBoost4Yall wrote:What was the gasket made of Kevin?? Most likely it should be a metal between the turbo manifold and turbo, the flange gasket. If it was metal and got hot enough to burn up to pieces then those EGTs must of been up there. When I had the Talon it was the Cam Angle Sensor that was loose causing it to sound like breaking glass,glowin red manifold. Sounds like them bearings in your turbo got owned. Did you put it back on and test it? If it is working, you is lucky. Did you see any debris flying out the exhaust??LOL

I got a new gasket from sean and that thing is super hard metal. I have no clue how the old one broke into pieces. My CAS is still in the stock position and the car ran perfect before this crap happened.

I get my turbo back tomorrow.

Are you home yet?

Post by **GotBoost4Yall** » Sat Jul 12, 2003 3:09 am

Not home yet, this sucks!! Hmmmm I see Tim got a BPT motor?? with a cracked oil pan and no turbo,guess you motivated him.:thinker So whats he doing with the stuff from the Talon setup? I don't thinks he going to be able to use it...........

Post by **Nismo1182** » Sat Jul 12, 2003 3:09 am

hes getting a 1994 complete mercury capri motor from some guy in virginia. The guy is driving it down here on the 20th or 21st. Everything is complete.

Post by **USDM_OneVia** » Sat Jul 12, 2003 3:09 am

Update:

Got the boost gauge working.... crappy *** nylon line crimped at the firewall. I have 21 mmHG at idle and it will boost hard to about 7, seen it hit 10 once, and then fall on its face.

Tried to check the timing.... but the timing light I bought was a peice of ****. So gotta recheck it.

Also..... on a test drive, I blew one of the intercooler pipes off, so just to make sure that the IC isn't leaking, I just turned the hot pipe into the charge pipe to bypass the IC all together. So it goes directly from the turbo to the intake manifold. It held the idle a bit more steady and a bit more smooth, but no real change in the acceleration, still dies at about 4500. But when I was doing it that way, the car sounded like a little kid screaming at the top of his lungs when boosting. So I just turned it off and called it a night.

I am going to install the fuel pump tomorrow, then also check the TPS.

I am REALLY starting to suspect that it is in the wastegate myself. I will boost to 7 pounds, peak, and fall off. It won't hold the boost.

I'll let ya guys know what I can find out. But I am slowly starting to find out what is good on it, and what is bad.

Now that I just read that post about the bearings, I am getting kinda nervous about that now.....

Joe

BTW.... VDO boost gauges... very nice looking peice.

Post by **GotBoost4Yall** » Sat Jul 12, 2003 3:09 am

Good luck on your findings. On turbo cars everything makes you nervous. When I first had that problem, I almost ended up buying a new turbo ,ecu, just to eliminate problems, but it was the most stupidest thing, damn wastegate actuator arm!!!!

Starts.... but thats about it.

Starts.... but thats about it.

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