Car slows down when i hit boost??
11-11-2009, 10:32 PM
#22
Cpt. Slow
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Join Date: Oct 2005
Location: Oregon City, OR
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A narrow band in my case would have said lean. Testing fuel pressure would show low pressure, replacing fp didn't help, 2nd time taking fuel pump out and I noticed the ripped line, wide band wouldn't of helped. Full rich on a narrow or wideband won't tell you much. Again, they're great tuning devices but they're not the best to diagnosis a "broken" car. That said I'll never live without one.
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11-12-2009, 12:31 AM
#23
Holy ****** **** whats with the newb feild day. ok hyper her goes your fuel pump is dieng. Plz get a real one and you will be fine.
My first clue is the car is only slower when you put more demand on it for power ie boost.
My second clue was that your fuel pressure went from 40-60 and back down to 40 while trying to accelerate get a walboro 190 hp and you will be fine to go back to the way things where.
MY 3rd and final clue was that your **** has been fine for 8 yrs nothing runs for 8 yrs and then magically goes out of tune.
Now you can listen to my sage advice or run all over the earth doing what these newbs suggest. If you think im wrong you could pm your symptoms etc to any other regular ie Braineak, olderguy, turbotim and they will say the same thing. GL to ya man.
My first clue is the car is only slower when you put more demand on it for power ie boost.
My second clue was that your fuel pressure went from 40-60 and back down to 40 while trying to accelerate get a walboro 190 hp and you will be fine to go back to the way things where.
MY 3rd and final clue was that your **** has been fine for 8 yrs nothing runs for 8 yrs and then magically goes out of tune.
Now you can listen to my sage advice or run all over the earth doing what these newbs suggest. If you think im wrong you could pm your symptoms etc to any other regular ie Braineak, olderguy, turbotim and they will say the same thing. GL to ya man.
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11-12-2009, 12:47 AM
#24
Holy ****** **** whats with the newb feild day. ok hyper her goes your fuel pump is dieng. Plz get a real one and you will be fine.
My first clue is the car is only slower when you put more demand on it for power ie boost.
My second clue was that your fuel pressure went from 40-60 and back down to 40 while trying to accelerate get a walboro 190 hp and you will be fine to go back to the way things where.
MY 3rd and final clue was that your **** has been fine for 8 yrs nothing runs for 8 yrs and then magically goes out of tune.
Now you can listen to my sage advice or run all over the earth doing what these newbs suggest. If you think im wrong you could pm your symptoms etc to any other regular ie Braineak, olderguy, turbotim and they will say the same thing. GL to ya man.
My first clue is the car is only slower when you put more demand on it for power ie boost.
My second clue was that your fuel pressure went from 40-60 and back down to 40 while trying to accelerate get a walboro 190 hp and you will be fine to go back to the way things where.
MY 3rd and final clue was that your **** has been fine for 8 yrs nothing runs for 8 yrs and then magically goes out of tune.
Now you can listen to my sage advice or run all over the earth doing what these newbs suggest. If you think im wrong you could pm your symptoms etc to any other regular ie Braineak, olderguy, turbotim and they will say the same thing. GL to ya man.
Yea your lean.......
Check all your vaccume lines, If you have a leak, the afpr will not get the proper boost.
And what is up with the bipes, NOT PULLING TIMING! This could be a issue as well. What is your base timing set at?
You need to set the proper settings on the bipes and set the base timming to 14*.
Check all vaccume lines. And double check boost pressure. You will be lean anthing after 5psi. Or atleast I was!
BUT YOU SOUND LEAN FOR SURE.
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11-14-2009, 04:21 AM
#26
Ok guys i ordered a Walbro 190 and it will be in tuesday. So today i was doing some tests. When i jumper the gnd and ten and turn the key to on there is no fuel pressure on the gauge? Does that mean the fuel pump is gone? but when i start up the car it's at 40 and it stays there even when i'm driving so i try to stay out of boost. And when i shut my car off after driving the fuel pressure gauge says at 40 even after 5 mins so injectors are fine.
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11-14-2009, 04:59 AM
#27
is it a mechanical fuel gauge? If its mechanical it should stay the same psi after you shut the car off for days. It should not go down to 0 unless you have a fuel leak somewhere or ur fuel pump is shot and not holding pressure after you shut it off.
Do you have to crank on it for a long time for it to start?
Do you have to crank on it for a long time for it to start?
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11-14-2009, 06:36 AM
#28
Senior Member
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Ok guys i ordered a Walbro 190 and it will be in tuesday. So today i was doing some tests. When i jumper the gnd and ten and turn the key to on there is no fuel pressure on the gauge? Does that mean the fuel pump is gone? but when i start up the car it's at 40 and it stays there even when i'm driving so i try to stay out of boost. And when i shut my car off after driving the fuel pressure gauge says at 40 even after 5 mins so injectors are fine.
Like others said, at idle squeeze the fuel return line with pliers, and watch to see if the fuel pressure rises up to around 100. Your engine will start to bog down from the extra fuel when you do this.
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11-15-2009, 11:52 PM
#40
is it a mechanical fuel gauge? If its mechanical it should stay the same psi after you shut the car off for days. It should not go down to 0 unless you have a fuel leak somewhere or ur fuel pump is shot and not holding pressure after you shut it off.
Do you have to crank on it for a long time for it to start?
Do you have to crank on it for a long time for it to start?
On the note of vac leaks, you can use a flamable spray liquid ie wd40 etc, to diagnose leaks as well. But with your idle being at 20 inches etc i think you are fine in that respect.
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