91 LX Cut-Out when Accelerating

[sick6sect]

Hey it was nice meeting you too, and your wife and son. You just caught me on a really bad day at work, i was highly pissed about my outcome with paint issues that week, If your ever around, you and your wife and son should come hang out, with my wife and 1 1/2 year old son and I at the house. We can always figure something out to do to your car if we get bored.

Sounds awesome, the same invite extends to you.

[A Zombies Minge]

Could it be the ECU itself ? I had a Chevy Beretta that had very similar problems. Sometimes it would run with no issues nice and strong, other times it would bog when I gave it gas and stall if I didn't give it gas. I replaced every sensor under the hood only to still have the same problems. I finally broke down and went to jy and pulled 3 ECU's, 1 from a vette, 1 from a beretta, and 1 from a corsica. The one from the vette ended up working and the car never gave me another problem. It was nice since I had done everything else trying to get there the car ran like a dream. Maybe just go pull a couple ECU's and try swapping them out to see if it helps....

[s.green]

I, too and having the same problem. I figured that it was the clutch just how it's been jerking so badly. When you crank your card does it sometimes sound like metal is scraping on something? I'm not sure what that noise is but it when it makes that sound it makes me think i'm out of gas but I'm not.
After reading this thread from front to back, I wouldn't be surprised if it was a fuel related issue but the only thing I could think of are clogged injectors. It sounds like you have done everything but it doesn't seem like anyone thought about the injectors.I know the sea foam coming through the pump might have cleaned it out. I'm about to go out and pull my vaccum hoses and check the tps too so I let you know what I find.
I haven't doen the O2 test yet because I need to go buy a socket. Good luck to you!

[sick6sect]

Could it be the ECU itself ? ..............Maybe just go pull a couple ECU's and try swapping them out to see if it helps....

I attempted to calibrate the TPS unsuccessfully. I spent about 2 hours wiggling the TPS back and forth, even removing and reinstalling it, trying to get somewhere close to .45v. The lowest I could get was around 1.3v, which is leading me to believe it may very well be the ECU sending bad information to the rest of the car. Will head to a junkyard as soon as possible. What ECU's should I be looking for? Are any other vehicle ECU's compatible with my A/T 91' LX?

edit: Forgot to mention that my new distributor arrived in the mail, will get that put on soon.

[EJX_Michael]

I attempted to calibrate the TPS unsuccessfully. I spent about 2 hours wiggling the TPS back and forth, even removing and reinstalling it, trying to get somewhere close to .45v. The lowest I could get was around 1.3v, which is leading me to believe it may very well be the ECU sending bad information to the rest of the car. Will head to a junkyard as soon as possible. What ECU's should I be looking for? Are any other vehicle ECU's compatible with my A/T 91' LX?

edit: Forgot to mention that my new distributor arrived in the mail, will get that put on soon.

PT3 or PT6 from a 90-93 Accord Dx/Lx/Ex/Se or a P12 From a 92-95 Prelude S

[sick6sect]

Thanks I found this thread at about the same time you responded recommending the P12. But it did not mention the year or model of prelude to pull it from. So I will keep my sites on a A/T 92-95 Prelude S P12 ECU. Wish me luck.

[EJX_Michael]

Thanks I found this thread at about the same time you responded recommending the P12. But it did not mention the year or model of prelude to pull it from. So I will keep my sites on a A/T 92-95 Prelude S P12 ECU. Wish me luck.

Yup. Good luck bro! If you didn't know, the lude S has the same motor as the CB. So at the JY if you see a lude, look for the F in the engine bay, then attack that ECU!

[SinCityCB702]

my car does the same thing when the cel is not on...ones it bogs if u let off the throttle and step on it again.. it'll keep on going.. if the cel is on the car runs perfectly..ive been told that this is usually caused by blocked egr passages..

[sick6sect]

Got the P12 ecu installed, problem persists. Car idles at 1500 even when idle screw is all the way down. Also while idling, it appears that the engine is occasionally misfiring, so i will pull the plugs and sand off any carbon build up, and recheck the gapping. I need to recheck the TPS to see if the new ECU will allow me to properly adjust it. Also need to put the new distributor on. Have I overlooked something? Should I try to blank off the EGR? Recheck every repair I performed?

[KeeleDesign]

sorry to here no luck,
but as i mentioned this does not sound like an ecu problem.

what brand is your multimeter, some cheaper models can have up to 1 ohm or voltage off what it should be. so it's tricky, you need to figure out what your 0 voltage is and this is a long detailed way to use a multimeter i don't really feel like diving into.

if your ecu light comes on it's simple, something with your emmission controls is wrong,
meaning your injectors are im-properly functioning, your plugs,wires, coil or distributer isn't allowing good spark.

your mixture of both is either to great or to lean.

my tps did what yours is doing. My h22 ran for 6 months with a non funtioning tps, it fell on it's face at 3,000-4,500 rpms, but ran and ideled fine for some reason. I replaced and reset it and the problem went away.

is your cat still on your car?

i forgot.

whats the voltage being sent to your fuel pump?

whats the ohms going to your tps,

have you replaced your plug wires?

it's been so long but does this engine have a cam sensor? i remember the h22 did. if so I'd lookinto checking it to see if it's good. but i'm thinking it's made into the distibuter.... which tells me that could fix your problem, if you reilign it properly.

I use to move my distributer slowly one way or another and mark it untill i got the best performance and gas miliage out of it, too far either direction caused similar issues I'm thinking you have.

[sick6sect]

I'm about at the point where the next thing I buy to put on this car is a For Sale sign. I again attempted to calibrate the TPS. I replaced the distributor making special note of the firing order. Pulled all of my plugs to recheck them again (were replaced in December). And then resisted the urge to beat dents into the body of the car, when the above mentioned repairs and checks, only increased the driveability problems of the car.
While calibrating the TPS, I did everything that I could think of to decrease the voltage. I adjusted the idle screw, the throttle pulley, and the throttle cable and still was only able to drop voltage to .574.
While replacing the distributor one of the two teeth broke off during install, so I ended up putting the old one back on.
When I checked the plugs they all had severe carbon deposits on them, so I sanded off the contacts and put them back in. I am unable to get new plugs at this time due to the fact that my car, after the repairs, can only get up to 45mph now.

The problems I have now are very low acceleration and shift points (shifts to 4th gear around 30mph.) Tachometer jumps continuously throughout the range. Thermometer does not work. High idle (1600rpm and I cannot lower screw any more). I loose most of if not all of my power when the transmission shifts gears. I am getting around 17mpg. etc. etc. etc.........

[KeeleDesign]

you still have your cat? i keep forgetting. if so does it get hot and glow red?

if you decide to sell let me know. sounds like something easy, a ground or something of the nature.

also, hve you had any of the codes checked?

[sick6sect]

The car is running again.... and I am unsure of how I did it. I reset the ECU again, pulled all of my vacuum lines and placed them back, pulled #1 plug wire and placed it back. That's It... stumped.

[KeeleDesign]

hmmm, somethings not right.....

but enjoy it untill it crumbles again, got my eclipse going too, yay.

[sick6sect]

Have you gotten it out on the road yet? Glad to hear it's running. As for me I will keep digging to find out what is wrong with mine, but at least I can drive myself to work again.