Doesn't matter if it holds pressure after you turn the car off (it's not even checked for in the TSRM because it's not important).
You're not helping yourself here...
You're not helping yourself here...
Break up/Sputter after 15psi? Think i found the problem!!
- Thread starter suprafanatic
- Start date
Poodles;1425789 said:
Did you not read what I said when I said that I checked the coil packs, and checked the wires? They all measure up to the TSRM specs.
As for the FPR i have heard that if its losing pressure after you turn the car off then that is a problem, because fuel is either leaking out, draining straight back to the tank, or could be a hung injector. So yes that is a problem that needs to be sought out. If its losing pressure that easy i might not be getting full fuel pressure under boost.
Dave as for the spark plugs im using NGK BCPR6E's Copper and ya its a Walbro off ebay. I dont think its spark related at this point, i think its fuel related. Because the plugs were working just fine untill i fixed boost leaks and I had also removed two injectors to put new O rings on them. After i did that the injectors were leaking alot of fuel, So i took them out agian and found one of the O rings ripped when putting it back in. So i replaced the O ring agian. After that no fuel leaks, but im left with the car sputtering under boost.
Ya i have a wideband and SAFC II to tune with, It says anywhere from 10.5-11.6 when the break up happens.. So maybe iam getting enough fuel pressure :S i have no idea what to think. If someone has another idea of what to test/try please let me know. Im stumped.
if your wideband is reading in the range you say, quit questioning the fuel. if you were leaning out like you suspect, you'd have melted something by now.
Poodles;1425838 said:Love people giving me negative scores
I'm out, screw it.
Same whoever Negged my posts can get fucked I'm just about done with this community as a whole....
to some of the members commenting negatively about some of the posts in this thread, a forum membership does not automatically entitle you to all imAginable help. if you don't like the answers you've received, figure it out on your own and stfu. there's nothing that makes you want to help someone less than them trying to argue with the advice you are giving. worse yet is the bs going on here. smarten the fuck up.
Where is the ignitor on this car? I wasn't sure if it had one since it appears to be a wastespark system. I've been helping him with this. It seems like a spark issue because it'll hit 10.5-11.0 AFR when it cuts. It sounds like a misfire. I'm wondering if, since we fixed the boost leaks, the cylinder pressure is too high for the stock ignition system to handle. The car holds 30-40 psi at idle and when he shuts the car off, it takes about 8-10 seconds to bleed off to zero. I did mention to him that the fuel pump might be the reason the pressure bleeds off. That shouldn't have any effect on the running pressure. I did notice that he has two fuel pressure regulators. One aftermarket and one factory on the return (I think, it is on the rear of the fuel rail) so I'm not sure if that is the issue.
mine doesnt hold rest pressure... AT ALL. other then an extra 2 revolutions in the morning ive never seen it affect anything else. Aeromotive's arent supposed to hold pressure. At least according to their tech department and my car.
30-40 at idle is a huge gap. it should sit perfectly steady at idle.
no comment on the rest of the thread/teeth pulling...
30-40 at idle is a huge gap. it should sit perfectly steady at idle.
no comment on the rest of the thread/teeth pulling...
It jumps around, but the idle isn't steady. It idles up and down about 100 rpm (guessing by sound since I'm not watching the tach) and the fuel pressure changes with the idle. It seems to change when the IAC opens to raise the idle, less vacuum.
I drive a turbo Escort, not sure what TSRM is.
Does it sound like it could be a weak spark issue to anyone else?
I tested the coils between terminals A and B. Hot resistance was between 0.5 and 0.65. The most resistance in the plug wires was the longest wire at 4300 ohms. The Autolites he had in there for less then a day had heavy carbon deposits on the outer ring and clean electrodes/ceramic.
The only boost leak left is the one from the IAC. The fresh air intake for the valve leaks boost back into the intake before the turbo. It is after the MAF so it is not leaking metered air. But, it is making the turbo work harder. The diaphram for the IAC is basically destroyed so I'm sure that is why it leaks boost. I believe he has ordered a new one. I feel it is also important to mention that he ran a tank of leaded race gas through the car. I know this can have an adverse effect on O2 sensors so it is possible that his wideband isn't displaying properly. Although, according to Innovate, leaded gas will reduce the life of the sensor but not destroy it in one tank. I do wonder if there was enough lead sticking to the valves to cause them not to properly seat.
Also, another thought, how common is head lift in these cars?
I drive a turbo Escort, not sure what TSRM is.
Does it sound like it could be a weak spark issue to anyone else?
I tested the coils between terminals A and B. Hot resistance was between 0.5 and 0.65. The most resistance in the plug wires was the longest wire at 4300 ohms. The Autolites he had in there for less then a day had heavy carbon deposits on the outer ring and clean electrodes/ceramic.
The only boost leak left is the one from the IAC. The fresh air intake for the valve leaks boost back into the intake before the turbo. It is after the MAF so it is not leaking metered air. But, it is making the turbo work harder. The diaphram for the IAC is basically destroyed so I'm sure that is why it leaks boost. I believe he has ordered a new one. I feel it is also important to mention that he ran a tank of leaded race gas through the car. I know this can have an adverse effect on O2 sensors so it is possible that his wideband isn't displaying properly. Although, according to Innovate, leaded gas will reduce the life of the sensor but not destroy it in one tank. I do wonder if there was enough lead sticking to the valves to cause them not to properly seat.
Also, another thought, how common is head lift in these cars?
Someone has left about 10 negative feed backs for my posts as well 
I havent left anyone negative feedbacks.
Brad i didnt expect to see you in here lol.. Thanks for helping though!
Anyway as for the issue it seems to be getting worse, i was able to boost to 15psi before it would break up. Now its doing it around 10-11 psi. The new ISC diaphram should be on its way soon. I dont think thats causing the problem though seeing how its been bad for a while and i was able to boost 20+psi. So what else is there to check with the spark system?
With the FPR it holds 30-32psi at idle. I brought up the fact that its losing pressure fast after the car is turned off because it use to hold pressure for quite a while when the car was shut off. So something in the fuel system has changed. Wether that be bad or good I dont know. Iv heard mixed things about that so far.
I havent left anyone negative feedbacks. Brad i didnt expect to see you in here
lol.. Thanks for helping though!Anyway as for the issue it seems to be getting worse, i was able to boost to 15psi before it would break up. Now its doing it around 10-11 psi. The new ISC diaphram should be on its way soon. I dont think thats causing the problem though seeing how its been bad for a while and i was able to boost 20+psi. So what else is there to check with the spark system?
With the FPR it holds 30-32psi at idle. I brought up the fact that its losing pressure fast after the car is turned off because it use to hold pressure for quite a while when the car was shut off. So something in the fuel system has changed. Wether that be bad or good I dont know. Iv heard mixed things about that so far.
Thats actualy what i was just looking through making a list of everything that might be related and looking through the tsrm. But i did have one question in making my list. Could the CPS be related to this issue?
making a list of everything that might be related and looking through the tsrm. But i did have one question in making my list. Could the CPS be related to this issue?Very possible.suprafanatic;1426168 said:Thats actualy what i was just looking through