IT WONT START!!! (Page 3/3)
Patrick JUL 09, 11:14 PM
Well, it was worth a shot. Hopefully, WinALDL will be able to tell you what's going on.

Download and install Cliff Pennock's ALDLView to allow you to more easily see what WinALDL finds.

[This message has been edited by Patrick (edited 07-09-2024).]

BruhMans06 JUL 12, 06:40 PM
New development

I have yet to get the winALDL adapter because the shipping is taking years so idecided to mess with the engine a little bit while I wait.

I decided to run the fiero for a little bit without the top of the air box, and to my surprise it idled. it idled like crap but it did idle.

the only difference is I had the cap of the aircleaner off. I slapped it back on when it was running and it bogged down again. so now I know its running rich.

I also noticed a **** load of fumes pouring out of the intake, which seems like it might a crap load of blowby on the cylinders since the fumes are coming out of the breather.

Guys I might be cooked.
1985 Fiero GT JUL 12, 10:10 PM

quote
Originally posted by BruhMans06:

I decided to run the fiero for a little bit without the top of the air box, and to my surprise it idled. it idled like crap but it did idle.
I also noticed a **** load of fumes pouring out of the intake, which seems like it might a crap load of blowby on the cylinders since the fumes are coming out of the breather.

Guys I might be cooked.



You might have a mouse nest or something clogging up the water separator in the fender.

As for the fumes coming through the breather, replace your PCV valve, or check if it is working. Mine was clogged, which made the small amount of natural pressure spray a bunch of oil into there, my whole intake system, everything, had a grimy layer of black oil, bad enough that when I removed my EGR tube to replace it, it was dripping liquid oil from there. Check that your EGR isn't stuck on, if it is, it would be idling horribly or not at all, and you would have literal exhaust coming into the intake, potentially burning any oil from a clogged PCV valve. Check those 2 things, EGR and PCV valve.

EDIT: TAKE WHAT I SAY ABOVE WITH A GRAIN OF SALT, I just reread the thread, yours is a 4 cyl, I'm not at all sure how everything lines up and fits on it, my post may still be useful, but it is specifically for the v6, I would still check EGR and PCV, although I don't know whether the PCV would be an issue, maybe more so the EGR.

[This message has been edited by 1985 Fiero GT (edited 07-12-2024).]

82-T/A [At Work] JUL 13, 10:11 AM

quote
Originally posted by BruhMans06:

New development

I have yet to get the winALDL adapter because the shipping is taking years so idecided to mess with the engine a little bit while I wait.

I decided to run the fiero for a little bit without the top of the air box, and to my surprise it idled. it idled like crap but it did idle.

the only difference is I had the cap of the aircleaner off. I slapped it back on when it was running and it bogged down again. so now I know its running rich.

I also noticed a **** load of fumes pouring out of the intake, which seems like it might a crap load of blowby on the cylinders since the fumes are coming out of the breather.

Guys I might be cooked.




I concur with 85 Fiero GT... check your PCV valve... if it's bad, it'll cause additional blow-by which is what it sounds like you're getting. A puff of blue or black smoke on start-up is usually bad oil rings, but continuous smoke is usually bad oil control rings, or a failing PCV system.

Either way, these engines are quick and easy to fix... so if you need to rebuild one. You're looking at $1,000 for everything... including machine-shop costs.
BruhMans06 JUL 14, 04:20 PM
So I pulled the PCV valve and swapped it with a new one, didnt fix the issue.

what did fix the issue was removing the pcv valve from the throttle body. this allowed the engine to idle somewhat consistantly. when I puilled the pcv valve, there was an immence amount of thick fumes and smoke pouring from it.

theres so much to the point that it is entirely suffocating the engine.

ive come to the concusion that my rings have gone bad. because the amount of crap coming out of these NEW breathers is immense, and I dont know what else would be causing this.

im not super pressed about the engine going kaput since i have a k24 on the way in the next 3 weeks. so now i have an excuse to replace the engine

[This message has been edited by BruhMans06 (edited 07-14-2024).]

cartercarbaficionado JUL 14, 06:43 PM

quote
Originally posted by BruhMans06:

So I pulled the PCV valve and swapped it with a new one, didnt fix the issue.

what did fix the issue was removing the pcv valve from the throttle body. this allowed the engine to idle somewhat consistantly. when I puilled the pcv valve, there was an immence amount of thick fumes and smoke pouring from it.

theres so much to the point that it is entirely suffocating the engine.

ive come to the concusion that my rings have gone bad. because the amount of crap coming out of these NEW breathers is immense, and I dont know what else would be causing this.

im not super pressed about the engine going kaput since i have a k24 on the way in the next 3 weeks. so now i have an excuse to replace the engine



do me a favor and block off the egr vaccum lines and them smack it with a rubber mallet and lemme know if it stops the blow by. also maybe loosen the exhaust a bit to see if the cat is clogged solid (will matter for the k24 swap anyhow)
BruhMans06 JUL 16, 06:32 PM
So my ALDL cable finally came in the mail and i used it and got some new data

the engine is running like literal crap rn and cant keep up on its own without me kepping my foot on the gas

i have some screen shots of the data and need some guidance in interpreting it



dash



Sensor data



raw data

im slowly losing hope

[This message has been edited by BruhMans06 (edited 07-16-2024).]

Patrick JUL 16, 06:39 PM

Download ALDLView. It'll make trying to comprehend the data so much easier.
Jamesdlane986 JUL 17, 11:20 AM
Did you check for a plugged catalytic converter as someone mentioned in a previous response? It's been about 3 years since my son and I went through all of these tune up adjustments on his 87 2.5l. We replaced everything you mentioned you did on yours. Did you replace the new injector with your old one just to make sure the new injector isn't the issue? It could be dialed in wrong and overfueling. Is this the engine with the distributor or is it electronic ignition with the coil packs on the side of the engine facing the back of the car? My son's 79 AMC 304 had an overly long hot wire to the distributor coil that caused so much voltage drop, it was 6Vdc when cranking and less than 8Vdc when running and only got worse as the rpm was increased. This caused the engine to appear be running rich when in fact a weak spark was not burning all the fuel. I chased that issue for over a year trying to adjust the Edelbrock for hours then walking away from the project for months before trying something else. We finally got it running great and now cylinder #2 only has 60psi compression. So, we get to tear the engine down again with less than 500 miles on it to see what's going on. But, at least we got a replacement transmission in his Fiero so he can drive that again now.

I digressed. Have you run a compression test on all of your cylinders before assuming the rings are shot. I've never seen an engine go from running great to blubbering like yours is from overnight ring failure. If it went from running and driving before all the parts replacement then one of the parts replace was bad out of the box. There are several ground wires bolted to the bell housing bolts, make sure those are all clean and tight.

Did you disconnect the battery for a few hours and then reconnect to reset the computer?

Where are you located?