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#11
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1990 Olds Stalls/Bogs on acceleration
In article >,
> wrote: >thanks for the replys, I forgot to add I did also change the fuel >filter... it was actually the first thing i did. And it did nothing. >When i check the fuel pressure it reads high 30s at idle and when i >step on the gas it does increase. It seems like it is not getting >enough fuel to me, when it starts to bog if i spray a little carb >cleaner in the hole for the air dam it picks it back up instead of >killing it like it normally would. But my pressure looks good and I >tried injectors out of another car that has been working just fine... >So i don't know how it would not get enough fuel? Because the ECU isn't giving it enough. It's time to get a scanner and start looking at the inputs and outputs. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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#12
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1990 Olds Stalls/Bogs on acceleration
I wish winaldl would work with this motor!!!!!!
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#13
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1990 Olds Stalls/Bogs on acceleration
I tried listening to the injectors with my long screwdriver. and it
sounds as if all of them are clicking and not missing a click when the engine is bogging... |
#14
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1990 Olds Stalls/Bogs on acceleration
On Sep 4, 1:04*pm, wrote:
> I tried listening to the injectors with my long screwdriver. and it > sounds as if all of them are clicking and not missing a click when the > engine is bogging... connect a volt meter to them.. when you open the throttle, there has to be an increase in gas flow, in the old days the accelerator pump did this,,, you will not be able to tell by hearing the clicks if more or less gas is being injected... the clicking will tell you that some gas is being injected... looking at the meter you should be able to see the voltage or pulse width increase when you open the throttle..like a dwell meter used to work.. Do you have the service manual? Mark |
#15
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1990 Olds Stalls/Bogs on acceleration
On Sep 4, 1:04*pm, wrote:
> I tried listening to the injectors with my long screwdriver. and it > sounds as if all of them are clicking and not missing a click when the > engine is bogging... also in my Celebrity which was single injector throttle body by the way... the problem would not persist for long enough to set a code....I had no codes or check engine light.. Mark |
#16
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1990 Olds Stalls/Bogs on acceleration
I am not fortunate enough to have the service manual, just a
haynes ... the car is not mine it is my sisters. So as you push the throttle the voltage at the injectors should increase? ok... I also have no check engine light.... fuel injection ****es me off sometimes i miss the carbs! When I get over there next time I guess i will have to try hooking my meter up to the injectors. How would you do this? Seems like you would have to take off the plenum hook up to one injector, and reinstall plenum. then repeat for all injectors? Or is there a easier way? |
#17
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1990 Olds Stalls/Bogs on acceleration
"Vic Smith" > wrote in message > Think the 4's had throttle body, but my '88 Celebrity 2.8 with > MFI had similar symptoms. Stalled leaving a stop light, but not > always. Progressed a couple weeks later to stumbling while > accelerating, but not always. > My mechanic replaced 2 injectors and that fixed it. > > --Vic I had an 89 Regal with the 2.8 that did the same thing. It was the injectors. |
#18
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1990 Olds Stalls/Bogs on acceleration
On Sep 4, 10:39 am, "HLS" > wrote:
> "Vic Smith" > wrote in message > > Think the 4's had throttle body, but my '88 Celebrity 2.8 with > > MFI had similar symptoms. Stalled leaving a stop light, but not > > always. Progressed a couple weeks later to stumbling while > > accelerating, but not always. > > My mechanic replaced 2 injectors and that fixed it. > > > --Vic > > I had an 89 Regal with the 2.8 that did the same thing. It was the > injectors. was it the injectors themselves bad or the wiring to them? |
#19
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1990 Olds Stalls/Bogs on acceleration
Mark wrote:
> if you can get the problem to happen in the garage while you are > troubleshooting it, then you may have a chance. Mine would only > happen when i was actually driving it... Could he simulate the load from acceleration by putting it in drive and chocking the wheels and putting on the parking brake, then giving it some gas? It might not look the same to the computer, but it produces some of the same conditions. |
#20
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1990 Olds Stalls/Bogs on acceleration
I'll contribute a probably-dumb idea. I haven't seen anybody mention
the spark advance. Does the car have a vacuum advance? Maybe those went out with carburetors ... |
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