I'm about to drive this thing off a bridge! B18B1 in eg.
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I'm about to drive this thing off a bridge! B18B1 in eg.
This is a obd1 B18B1 in a 94 sedan, manual. It is running the stock ls ecu. Two weeks ago, it was running beautifully. Then it started to stutter on the highway, only for about 30 seconds. No CEL. The sputtering was random. Then it started to do it even while driving around town randomly (90% normal, 10% ****). It is so bad that in town, I would say it "bucks" as it goes from bogging down to running normal to bogging down again. No matter how much throttle I give it unless it's WOT, then it doesn't buck, but you can tell it isn't running right.
No CEL. I've changed:
TPS
Injectors
Fuel Filter
Cleaned the IACV
Distributor rotor (cap looked new)
The only things left are the MAP sensor and the entire distributor! oh and the little sensor thing underneath the throttle body.
Anybody have ideas before all my hair turns gray??
It definitely feels like no gas. I'll press the gas down and you can hear the difference in sound, but it doesn't go... kinda like when you try to rev a carbureted motorcycle before it's warmed up and it runs, but it just sputters. Or is that too much gas?? I don't know. This is really making me mad though!!!!!! Any help would be extremely helpful!
No CEL. I've changed:
TPS
Injectors
Fuel Filter
Cleaned the IACV
Distributor rotor (cap looked new)
The only things left are the MAP sensor and the entire distributor! oh and the little sensor thing underneath the throttle body.
Anybody have ideas before all my hair turns gray??
It definitely feels like no gas. I'll press the gas down and you can hear the difference in sound, but it doesn't go... kinda like when you try to rev a carbureted motorcycle before it's warmed up and it runs, but it just sputters. Or is that too much gas?? I don't know. This is really making me mad though!!!!!! Any help would be extremely helpful!
#2
Re: I'm about to drive this thing off a bridge! B18B1 in eg.
This is a obd1 B18B1 in a 94 sedan, manual. It is running the stock ls ecu. Two weeks ago, it was running beautifully. Then it started to stutter on the highway, only for about 30 seconds. No CEL. The sputtering was random. Then it started to do it even while driving around town randomly (90% normal, 10% ****). It is so bad that in town, I would say it "bucks" as it goes from bogging down to running normal to bogging down again. No matter how much throttle I give it unless it's WOT, then it doesn't buck, but you can tell it isn't running right.
No CEL. I've changed:
TPS
Injectors
Fuel Filter
Cleaned the IACV
Distributor rotor (cap looked new)
The only things left are the MAP sensor and the entire distributor! oh and the little sensor thing underneath the throttle body.
Anybody have ideas before all my hair turns gray??
It definitely feels like no gas. I'll press the gas down and you can hear the difference in sound, but it doesn't go... kinda like when you try to rev a carbureted motorcycle before it's warmed up and it runs, but it just sputters. Or is that too much gas?? I don't know. This is really making me mad though!!!!!! Any help would be extremely helpful!
No CEL. I've changed:
TPS
Injectors
Fuel Filter
Cleaned the IACV
Distributor rotor (cap looked new)
The only things left are the MAP sensor and the entire distributor! oh and the little sensor thing underneath the throttle body.
Anybody have ideas before all my hair turns gray??
It definitely feels like no gas. I'll press the gas down and you can hear the difference in sound, but it doesn't go... kinda like when you try to rev a carbureted motorcycle before it's warmed up and it runs, but it just sputters. Or is that too much gas?? I don't know. This is really making me mad though!!!!!! Any help would be extremely helpful!
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
any other ideas? The wires and plugs are new, sorry i didn't mention that.
#4
Re: I'm about to drive this thing off a bridge! B18B1 in eg.
Probably won't like hearing this but I had a B17 92 GSR that did the exact same thing. Changed all the above just like you have. Ended up being the dizzy anyhow. Try swapping a buddies in
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
I didn't look at the timing belt because you have to take the valve cover off and I didn't want to mess with the gasket unless I had to.
It only did the jerky thing once and that was with the distributor turned a little bit clockwise.
Weird!!!!!!!!!!!!
Any ideas???
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
spoke too soon. same symptoms.just took a few miles to show up. maybe its just psychological, but the symptoms seemed less severe. i put the original back on, i'll know tomorrow if the symptoms are identical or not. its making me mad!
could some wire be rubbing somewhere worn off the insulation causing intermittent shorts?
could some wire be rubbing somewhere worn off the insulation causing intermittent shorts?
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
I had that problem in my 91 integra it was the coil pack in the top of the distributor I know u change yours but it my be worth taking a look at
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
Well it'll Buck unless its held at certain positions, wide open and 3/4 seems to be the best.
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
Felt like a clogged cat so I put on a greddy exhaust with test pipe, same deal. Replaced map, same deal. Replaced the p75 with a p06, same deal. Got a known good iacv, will put it on tomorrow ..
My cousin said the ground might need cleaned up, what say you guys?
And what's the name of the sensor under the throttle body? I hear it can go bad
My cousin said the ground might need cleaned up, what say you guys?
And what's the name of the sensor under the throttle body? I hear it can go bad
#16
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
that's your Fast Idle Thermal Valve. clean that bish up good. it'll help. i'd check your timing belt. very possible it could be the problem.
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
iacv's in, no change. Could it be the fuel pump? Before all the problems, we had run it down all the way to the point it cut out and wouldn't stay running.
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Re: I'm about to drive this thing off a bridge! B18B1 in eg.
go to a cheap tool store, harbor freight maybe? buy a cheap fuel pressure kit, hook it up and see if it reads around 45psi. If not, the pump might be you problem.
#20
Re: I'm about to drive this thing off a bridge! B18B1 in eg.
Since you have had the dizzy off I think its in your best interest to take a timing light to it. I've seen where the dizzy was clocked just a little off and it ran like *****, however this was not a stock dizzy. On a oem dizzy I have seen it clocked to the right orientation and it made the car run so much better and smoother.
#21
Re: I'm about to drive this thing off a bridge! B18B1 in eg.
hey i know when my car did i had to get on it for it to clear up then after a few weeks or so it did it all the time no matter what ended up being valve...check them as your last resort i guess
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