Nah that would jus cause a loopy idle

 

first off, NOT TRYING TO THREAD STEAL. but it may also help you out as well.
i was just about to make a post that is exactly like yours. car would have a hard time starting, but once it kinda goes i pump on the gas to keep it up and it starts. when it starts it putters and idles to where its about to die, right? once i gas it hard or drive off it runs decent/good.

the car is a 91 integra b18a1 motor

okay, so i have changed all these when i first got the car 2 months ago. fuel filter, spark plugs, spark plug wires, water pump, head gasket, did seafoam, thermostat, run high octane gas, etc..

im thinking can it be clogged or bad injectors? within injectors, i have a set of obd1 prelude non vtec injectors, and civic obd1 injectors. would those be able to covert over, plug n play? work?

i might just replace the tps for the heck of it.

so im stuck where your at, if you find out let me know bro. same goes back to you

 

Might be diffrent cause he got wire splicing to check out but its probly the map, swap your tb real quik

 

yea i have an extra map laying around, ill try that tomor

 

Manifold Absolute Pressure would that reflex on the temp of the motor? cuz when it is warm it is ok. This calculates the amount of fuel according to the tps and map as well as other sensors. I still have to test the TPS and might as well test the MAP too. I will let you know whats up

 

well... i checked the fuel injectors and all 4 of them looked like this.



after cleaning them up the car ran and started good. who knows still, sometimes it just randomly acts up, but if it does ill be back on this topic again.

 

how long has it been since u had a proper full tuneup?

i had a civic that had brand new wires act like this and i went retarded trying to find out what was wrong, turns out one of the wires were faulty from the start even when they were new causing missfiring and dieing.

my fiance actually mentioned the wires one random day i was getting pissed cause i couldnt figure out what was wrong and it turned out to be right lol

 

well i checked my TPS and i got 4.4 at closed thottle and .4 at open thottle

 

is that good or bad?

update on my girls teg.... STILL ACTS UP.. WTF MAN!!! car smokes a little light blue/white. ive changed head gasket. compression on 1 and 2 are low. really starting to think its the rings or something.

lyzer you check the map yet?

 

i think you've got that backwards.

but back on topic, first thing you want to do is determine whether this is a fuel related problem or ignition.

hook up a fuel gauge and monitor what happens when it drops out. if the fuel gauge drops first, then car dies, you know it's fuel related.
this way you can begin zeroing in on the problem instead of testing/replacing all the many possible culprits

 

My bad lol

 

I'd run a fuel system cleaner, check plugs, filters and listen and feel for vacuum leaks. Sorry if this was already mentioned, I was fed up with newb comments.

 

yes, yes, and YES.... fail in reading equals newbie answers. CMON MAN!!!

 

Eather rings or valve seals

you try jus swappin the tb? Its only 4 nuts don't get much simpler

uh....someone **** in your wheaties this mornin?

 

are you losing oil? coolant? does it smoke more at higher rpm? it does sound like rings. but are you sure you installed the HG correctly? because low comp in 2 adjacent cylinders is a common symptom of a leaking HG possibly due to a cracked/warped head/block. why did you change the HG in the first place? and did you have the head pressure tested and resurfaced?
next step would probably be running a leakdown test

 

the white/blue smoke could also be caused by running extremely rich. it may have even washed out the rings and caused your low compression.
another way of checking if it is the rings is to pour a teaspoon of oil down cyl 1 and 2 when you do the comp test. if it's rings, they will seal better with the oil and give you a higher reading.
but again, there is a possibility they are just being washed out by fuel. although, if you did have 2 stuck injectors, it would be running extremely poor if at all, so i kinda doubt that this is the case

 

actually losing coolant. you dont see it leaking anywhere either from engine bay nor on the ground. i changed the head gasket because all cylinders were low. esp 1 and 2. at i think 55psi and 60 something. plus it smokes at start up. milage is really really bad. she has to fill up the gas pretty often. before i cleaned out the injectors, everytime she fills up the gas the car wouldn't start. so she sits in her car for a few minutes and then starts it up. gas cap looks crappy too. went n got a brand new one at autozone but the cap didnt even fit. i was there for like and hour trying to figure it out with them. but overall they just said "welp, sorry". not sure, i might just break it down and change the piston rings, rod/crank bearings and see how that goes...

 

well hold on now. pin point the problem first.
you may have a cracked/warped head and/or block.
try the teaspoon of oil in the spark plug holes 1 and 2, then test compression.
you're also eating coolant, so now i am even more convinced that it may not be the rings. did you have the head pressure tested and resurfaced prior to the HG install?
any oil in the coolant? or does your oil look somewhat milky?
2 low cylinders will also cause some pretty shitty mileage as well

 

You changed the headgasket cause your compression was low?

55 psi, sound like you should start looking for a new engine

 

^^unfortunately, this may be a more time and possibly cost efficient route to go

 

what was the point of the teaspoon in the spark plug holes?

"did you have the head pressure tested and resurfaced prior to the HG install?
any oil in the coolant? or does your oil look somewhat milky?"

the head wasn't resurfaced. there's no oil in the coolant. and no the oil doesn't look milky.

reason i changed the head gasket wasn't because of the low compression. it was leaking oil, radiator fluid kept going low, and the car was smoking. plus the previous owner said owning it for 6 years they never did the head gasket. so i just wanted to do so real quick.

but i am thinking about rebuilding the motor this winter since the girl isn't going to be driving it. any other suggestions? car still stutters/putters on random starts.

 

just went through this...when is the last time you did a valve adjustment and checked you ignition timing? if it's been a while...check that stuff

also might want to try to adjust the base idle screw (screw on top of TB)-get car up to operating temp, unplug IACV(car will prob shut off) and adjust screw (counter clockwise for more air, clockwise for less) every time you adjust it, try to start your car til it runs...once you're happy, plug your IACV in.

 

If you jus go back and read the post it says why you'd put oil in the cylinder..

You said earlier the compression was you reason for changing the headgaskets...

Rebuilding that engine is gonna cost 3x's more than jus dropping a new low mile engine in, your engine is toast 50 psi in a cylinder is your problem, two of your cylinders aren't puttin out half the energy the other two are(if they're even puttin out what their suppose to.)

And it is not the idle screw or the iacv.

 

yea i changed it because of the oil from the head/block part running down, its smoking, and yes the low compression made me think it was also blown (meaning once i did compression i was thinking for sure it was the head gasket). and yea usually there's a creamy look to the oil, but not all the time. after the gasket change the compression did go up.

idle screw, ive already messed with it.

 

Then yea its rings or seals, you need a new engine.

The price to rebuild one is twice the mooolah

You can find a nice jdm LS low mile for cheap