ok before anything i already searched and didnt find the answer im looking for. i have a 93 h22a1. my car has been misfiring a bit last week. but i changed dist,cap&rotor,spark plugs and spark plug wires. its still bad. it'll idle fine around 1,000. then 2 seconds later, it'll drop like it wants to shut off but it'll pick up again. its weird because i thought it was just a misfiring problem but now the tune-up is done. its still doin the same things just a lil worst. could it be a bad cylinder? or bad injector? or need to replace ignition coil. those are the possibilities that come to mind. but if anyone can help with a input i would appreciate it! btw, it threw out a CEL when it stalls out. and it stalled out on me twice. and the CEL came on and my car was sputtering and boggin out and wont want to pass 3k rpm when driving with the CEL on. thanks guys!

i double checked the gappin. all if perfect.


Modified by yO_wHuDdUp_B at 4:21 AM 2/1/2006

 

its a posibility it could be the coil. might wanna check that.

 

uhm...does it go above 3k rpm when the light is off? if yes, dont replace coil. if no, replace coil. i would suspect the crankshaft sensor/magnetic pickup coil in distributor/whatever your car uses to determine spark timing.

 

yea and whats the dtc that it sets when it stalls? thats obviously the first step in this diagnosis.

 

heres a tip. dont drive the car until its fixed Oh and it definately sounds like a sesnor-type problem. Does the light go on right when the car is turned on, or after its been runnin a few min? sounds like a close loop problem to me.... sensor or sparks, maybe ecu.... but we need that code

 

it wasnt my intentions to drive it when my CEL was on. but i wasnt about towing. well i'll have to check the code. i forgot how to read it. but my cousin remembers. anyways, when the CEL is on when im driving it, it WONT go pass 3k. it will just bog out or just stay there till i shift. thanks for the help guys! more info would be greatly appreciated!

 

Heyy..
The probleme whit 1996 and earlyer is you cant scan it to get your code problem..!
I got a prelude 1991 2.0si
And i use to have this problem.!!
Bad idle.. goes up and down when ever it's whant's
The TPS sensor wasint receving the good signal.. if my memory is good 0.45volts is the stock voltage required by the TPS sensor..
But you should test it whit your own personal car.. i got mine at 0.43 volts and the idle was perfect..!
but
to repair it by your self u need a voltometer and somme good knoledge of electronic car device..!
So just bring it to a dealer and he l fix it up for u.
LTN .mc Jessy Leonard
3 Class U.S AIR force Mecanic

 

i think im leaning towards a bad cylinder. but even then, my car still pulls the same way. my motor is almost to its dying days. 208k is wayyy over the hill. but i just want to find out what it is. i checked all my sensors. and i checked all my vacuum lines. nothing. dunno if my injectors are bad. maybe it doesnt spit out as much on cylinder #4.

 

Well, if you suspect cylinders, I would check compression, it shouldn't differ much among cylinders. And look for oil in antifreese, and antifreese in oil.

Second, if stalling occur when you press and release throttle, look for idle valve problem.

Third, look on spark plugs after about 100-150 miles run, and once again after some idling. They should look all the same, stains of carbon on them can mean over-rich mixture (dirty injectors can cause that) or oil in cylinder, etc.

If it is easy for you and doesn't cost much - replace ignition coil. If, say, you can obtain it for free at junkyard.

Good luck!

 

^^^thanks for the input, prolly the most precise one. im definetly goin to get it checked out and i think my car has been running a really rich mixture. but thanks again. any other suggestion?

 

ok i just checked my cylinders at work today. came out 190-200 across the board. i changed my distributor cap/rotor/spark plug/spark plug wires and today my ignition coil which i got for free. so now i think it'll be bad fuel injectors.

 

then try resetting ecu (disconnect battery or fuse 43 (clock-radio) for 10-20 sec)

if there is any place where you can check and clean injectors, do so.
Here in Russia, due to bad fuel, this procedure often helps to restore power and stable run.

good luck!

 

Get the code before you clear the ECU. I can't believe you get an CEL but you don't find out what the code is.

 

the code will only come on in awhile. and once i shut it off. it goes away. and know i have no code to go after once its off. the code came up yesterday but when i got out my car to do that lil trick thingy i shut off the car and i didnt know if i shut it off it was gonna go away.

 

The light might not stay on, but the codes are stored in memory until you pull the fuse or disconnect the battery.

 

ok the engine check light went away. when i changed my ignition coil i unplugged the connector to the EGR. but i reconnected it. but im still getting weird idle. i think its my fuel injectors that arent pausing. it seems to be just constantly throw fuel into the cylinder because my car is backfiring alot. and poping sounds at idling. ima go ahead and check my injectors and i'll let ya'll know how it goes!


Modified by yO_wHuDdUp_B at 1:21 PM 2/7/2006

 

CHECK THE DAMN CODE FOR CHRIST SAKE.


Im willing to bet its a code 14 for the idle air control system.

Could be that the IACV screen needs to be cleaned, the FITV is sticking or you have a nice big vac leak that is causing the system to lose pressure thus making the IACV try to correct the issue and resulting in a check engine light.


Just because the CEL went out for awhile doesnt mean the code is not stored in the ECU's memory. Jump the damn connector and count the flashes of the check engine light. A long flash counts for 10. a quick flash counts for 1.

 

what you dont understand is i checked it already. it was giving code 12. which was EGR. my EGR connector was unplugged cuz i forgot to plug it after changing my ignition coil. i reseted the ECU thinking it was that. but i remembered another check light comes on when i drive the car for a long time but since i resetted it, its not showing any code. and i havent driven my car since this problem happened.

btw, my IACV and TPS sensor went out on me 2 months ago usually happens when you drive it hard. since then i never pushed my car not only that, but i replace not just that but the whole throttle body since it was a deal. i already picked up some injectors so ima go ahead and change that and see how things turn out. thanks for the help!

 

ok i changed the fuel injectors. was a bit better but not fully normal. what i noticed from the muffler tailpipe is that it has alot more back pressure and you can smell the gas fumes more. like my car has that sound where it sounds like is misfiring but its just alot of back pressure. most would say to fix that is to get your car tuned which i will do in the near future. but other than that. all ignition stuff changed. and fuel injectors changed. throttle body cleaned. IACV checked and is fine. any other possibilities?!

 

^^^ i feel you bro! my car is random as well! it just wants to be retarded when it wants. i just changed my fuel filter and tps and all that. ahhhhhhh well im going to expect it sooner or later. 209k running strong but isnt reliable. time for jdm h22a. but hopefully i can find the cause of this problem just for the best of my knowledge!

 

have you replaced the knock sensor and o2? worth a try. you've practically replaced everything. are you positive you're getting spark in every cylinder?

when you check for CEL's, even when you turn the car off and the CEL doesn't come back on, you should check for it anyways. it's stored so it should pop up when checking for it.

keep us updated.

 

nah i havent replaced the knock sensors, nor the o2 sensor. im getting spark in every cylinder. like it chugs. cylinder #4 kinda does a bit. maybe bad piston ring? but then again my car still runs strong. like ive had the same power. my CEL doesnt come back i'll go ahead and check it again and i'll let you guys know! thanks for the concern!

 

ok i got a new code today. its code 4. crank angle sensor. what and where is this part?

 

nevermind i search. common answer would be "time for a new dizzy" maybe this is the reason why my car is misfiring and being all ghey. learn something new everyday! thanks everyone who helped and all that!

 

omg the crankshaft sensor?!?!??!?! no way i never would have assumed that. oh wait i did. about 30 comments ago.