The Saga Continues... - Page 2 - First Generation Forum

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Re: The Saga Continues...
Tuesday, December 21, 2010 8:09 PM
Cool if this helps but,does not resolve it I will throw ideas about the fuel system.I have rebuilt my tbi and did all of it except the fuel pressure regulator.It just has diaphram to be done for it.And it does affect the cars psi fuel wise along with the injector.I do have a post on here about it.If u care to read up on it.I will stay tuned.




Re: The Saga Continues...
Wednesday, December 22, 2010 8:59 AM
yeah, that regulator has been my biggest fear since the part is pricey--either $200 or $300 last I looked.
Re: The Saga Continues...
Thursday, December 23, 2010 6:53 PM
Well, tranny service done and that oil pressure switch replaced and still it continues...

i miss my car
Re: The Saga Continues...
Thursday, December 23, 2010 11:57 PM
Alright I will sort some ideas but,NOT right now just got home and tired and thinking is not available from me.I will think on it tommrw or rather friday while Im off.COoL



Re: The Saga Continues...
Friday, December 24, 2010 11:45 AM
jesus christ you have the mother of all gremlins ]:-> This is just a shot in the dark but could it be a small hole in the intake manifold gasket? The wife's saturn gave our mechanic alot of grief trying to find out what was wrong with it, took him a whole afternoon which thankfully he didn't charge for. Ran fine most of the time but when you'd get on it when trying to merge onto the interstate it ran like @!#$.









Re: The Saga Continues...
Friday, December 24, 2010 8:02 PM
Have my doubts on that, it runs great--steady idle, no pings or knocks--people are usually impressed with how good it sounds and how clean it is under the hood (except for the camshaft carrier gasket leaking oil).

This has happened at a steady 60mph, a steady 45mph and steady 35mph, all times on flat land. It is at its worst when going up a hill. I figure I must be a really consistent driver as it will even happen at the same places all the time. Basically just trying to say it doesn't necessarily happen when I accelerate, it can happen while at a steady speed.

When it does happen, I let off the gas or downshift until it clears up and then it's usually fine for a while. I'm just afraid to drive it because it seems like it might be getting worse and I don't want to end up stranded or worse in an accident because of it (like if I make a left turn, what if it stalls on me).
Re: The Saga Continues...
Friday, December 24, 2010 9:25 PM
Ok Here are my suggested checks and ideas.Being you probably never have rebuilt the TBI and other fuel items first things.I would suggest checking the fuel psi and I know our cars did not come with a schrader valve to this easily(damn).Anyway just hooking a fitting inline with the primary fuel line check for 9-13 psi.Second does the injector while running spray in a fine mist(NO drips or slurpy fuel ).I would take the air clnr off let some one or u check this and idle it up evenly to almost wot.Third it is time to check the idle air control valve.To do this place the positive connector from a multimeter into the signal wire(not sure if it is the lt blue/white or lt green/white).Now place the black from multimeter to a ground(make sure it a good one)Next check this as the engine warms up from cold and the voltage should increase as the engine warms up and the valve cuts off additional air.Now if the voltage is nice and smooth but,the IAC valve is not opening or closing the part may need to be replaced.As for the fuel pressure regulator normally a leaking gasket is all I can think of for it.And the only way to know if it is shot or worn is to remove it and replace(i'd wait) on this yet.And just to bring a little cheer the Fuel injector part # 572062 for 86.09 , the Idle air control B&W brand part #21738 42.99 and the fuel pressure regulator part# 21730 ALL these are at advance auto parts! I suggest doing the checks before buying any parts.And may suggest just rebuilding the TBI it might be cheaper to buy the kit which should include gaskets,orings,and fuel press reg mine did.I did not check for the kit price.Now don't fall asleep reading my book!



Re: The Saga Continues...
Thursday, January 13, 2011 8:39 PM
Try the pickup coil and ignition module, also, check base ignition timing.




Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!

Re: The Saga Continues...
Friday, January 14, 2011 7:46 PM
entire ignition system was replaced this year, so that isn't it.
Re: The Saga Continues...
Saturday, January 15, 2011 10:27 PM
You might want to check this vacumm canister it is mounted below battery tray (u have to lay under the bumper to see it) and make sure it is not cracked and the vacumm line is solid on it.This is probably not the issue,but just sat here and and thinking on ur issue.Btw the fuel pressure regulator can be bought as a separate part! It is easy to install couple of torx bit screws or phillips (torx is what it is I am tired) I believe.It was only like 35 Idk with out checking again.The choke,cough makes me think it is more fuel related injector,or harness to injector, or fpr.All at advance for sure.A little (big glass of merlot makes me think more intracate).



Re: The Saga Continues...
Tuesday, February 08, 2011 5:47 PM
you should check battery cables and check that there all tight and not corroded

Re: The Saga Continues...
Tuesday, February 08, 2011 7:37 PM
Battery cables are good.

Still hasn't been warm enough, no snow to check that vacuum cannister yet.
Re: The Saga Continues...
Thursday, February 24, 2011 11:10 PM
I am thinking on this again.Have you checked your timing to the letter.I would bet it should be 6 degrees btd as my 85 2.0 ohv eng is.Being you did the distributor(right) sounds like it is cutting out.I know my eng is stupid tight on time not much VARIATION on the timing when I got it to fire are removing the dist.One degree my azz and it will run.I know on my cav there is a plastic plug at the pass side u disconnect for setting timiing has a brown and white wire u unplug when setting the timing.It is at the shock/strut tower and our cars timing is done by a averaging method.Idk I am running out of go and will think on this some more.It could be something as simple as a bad connection in the eng harness or ecm who knows.



Re: The Saga Continues...
Friday, February 25, 2011 1:11 PM
I haven't checked that, but with it running so smooth (except when that problem happens) I doubt this would be it. I also figure the garage woudl've checked that when they had it (but I will check anyway as soon as I can).

I never took the distributor out of a 2.0, but on the 1.8, when I tried to change that part, it was impossible to put in in off time--the thing only came apart and went back in one way, you couldn't even be the 180 degrees off by accident.

I wasn't able to get the coil pick-up in when I tried it and handed that job over to the garage, so they were the last ones to remove the distributor anyway, so again I'm sure the timing is fine.

The snow is gone here, but the weather has been nasty rain/wind and will be all week. Wish I had a garage
Re: The Saga Continues...
Sunday, February 27, 2011 5:01 PM
Well the 1.8 doesn't have anything under the battery tray. What it does have is on the passenger side, a vacuum can with three hoses coming out of it, two routed toward the air cleaner and one to the ?gas tank?

It says fuel on that hose, I think it says PCV on another. It looks like a little garbage can. All three hoses seem to be fine there, everything looks like it's hooked up as it should be.
Re: The Saga Continues...
Monday, February 28, 2011 5:56 PM
That's so you don't vent stuff into atmosphere, it's a catch can of sorts.

I don't think it's timing because it would probably run funky all the time, not just at random intervals.



Re: The Saga Continues...
Sunday, March 20, 2011 6:53 PM
boy will I feel like a shmuck if the problem was with the timing...

I know it was mentioned, but I've had the car for two years without any problem like this, and now it shows up...really made me not consider the timing. To be fair to the garage I take it to, one guy is a basic mechanic and the other is a transmission specialist--especially on construction equipment and semis. They are not diagnostic types. When I realized how the distributor comes out, I also learned it it pretty impossible to screw up the timing when doing that; another reason not to look there.

Here my timing should be 8 and the darn thing was at 13. My idle was between 908-942 in park with the timing at 13.

After setting the timing, I drove it around and it didn't give me any crap, but I also didn't recreate the exact situations where it happened before. The car isn't inspected right now and I really don't want to get caught driving it, so I will have to do that at night in the near future, but I did take it to roads where I expected there to be a problem and there was none.

Just wondering what anyones thoughts might be on this theory: when I bought the car, everything else in the ignition system was just bad enough that they all got along and played well together with the timing at 13, but once I replaced all of 13's friends with new stuff, 13 showed me how unlucky that number could be?

I still don't know for sure if all is good now, and I won't fully trust the car until I can put it though a run to duplicate the circumstances and go on the roads where I had the problems before, but tonight I will go to bed with some hope in me.
Re: The Saga Continues...
Monday, March 21, 2011 8:06 PM
Well a tune up and timing being wayyy out would definetily play a role in the car choking,losing pwr.And as for the previous condition it could have been content per say.I actually need to adjust mine a touch plus replace my fuel press reg,it is loading up fuel but,car runs pretty good.I am not touching this stuff till I finish my dailys things to do first.One project at a time.



Re: The Saga Continues...
Monday, December 02, 2013 5:32 PM
the TCC wouldn't have anything to do with it for use, reason you feel it more is when the convertor is locked up in 3rd, the drivetrain is locked almost 1-1 with the engine , any little miss gets transmitted right to the driveline, if the egr is a problem at idle, it would be idleing rught and wanting the stall cause its like a huge vacuum leak when its open . so if it idles fine, the EGR isn't a problem.
Re: The Saga Continues...
Wednesday, December 04, 2013 3:16 PM
Also the oil pressure switch in the fuel circuit does not..I repeat does not cut the fuel pump off in case of a loss of pressure, its only there as a backup to the f/p relay,. If for some reason the relay goes bad, cranking the engine will engage the switch and power the fuel pump, the relay is what normally controls the pump.
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