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| Less power after being stuck in traffic (Page 2/2) |
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TheDigitalAlchemist
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MAR 26, 01:20 AM
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Thanks very much for the replies - Haven't had much time to go over the car much, but I think it might have been the fan causing the drain as mentioned above.
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TheDigitalAlchemist
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MAY 03, 10:24 AM
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Hmmm, it happened this morning about a block from my house. weather is in the 50's, the engine was on for about a minute. Was going about 15mph, stepped on the gas, and nothing...it felt kinda like someone was tryin' to pull the car back with a rope, I thought "ooooh crap." let off the gas, and then it felt normal when I pressed the gas again.
Not sure that it's the cause of what I felt this morning, but I think the Cat might be 'unhappy' (loose pieces bonking around) - I don't hear the "bonkity-bonk" at idle, but when I accelerate, I will hear it. Hafta replace that.[This message has been edited by TheDigitalAlchemist (edited 05-03-2023).]
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Patrick
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MAY 03, 03:51 PM
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| quote | Originally posted by TheDigitalAlchemist:
Not sure that it's the cause of what I felt this morning, but I think the Cat might be 'unhappy'...
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My experience with an internally disintegrating and plugged cat was that the engine ran fine at low RPMs, but couldn't breathe enough to allow for higher RPMs. Would basically choke at anything above 2500 RPM.
I suspect you have a fuel issue, due to either lack of fuel pressure and/or a faulty sensor (ie TPS, MAP etc). A scan tool or WinALDL would really come in handy.
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TheDigitalAlchemist
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MAY 03, 04:56 PM
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| quote | Originally posted by Patrick:
My experience with an internally disintegrating and plugged cat was that the engine ran fine at low RPMs, but couldn't breathe enough to allow for higher RPMs. Would basically choke at anything above 2500 RPM.
I suspect you have a fuel issue, due to either lack of fuel pressure and/or a faulty sensor (ie TPS, MAP etc). A scan tool or WinALDL would really come in handy. |
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Thanks for your reply, is there a particular scan tool you would recommend?
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Patrick
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MAY 03, 06:54 PM
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| quote | Originally posted by TheDigitalAlchemist:
... is there a particular scan tool you would recommend?
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I'm not very familiar with standalone Scan tools. WinALDL is what I use. A cable is required to connect to a laptop. It's possible there's also an android version that would connect via bluetooth. Check with PFF member phonedawgz's site to see what he has.
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sanderson231
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MAY 03, 08:25 PM
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| quote | Originally posted by sleek fiero:
Yes Mr. Ogre, even fuel injection systems can vapor lock under the right heat conditions. Just check online and I'll bet you can find psb's for this especially on older systems. With hot fuel returning constantly to the tank you can loose efficiency of the fuel pump and even fuel pump failure. Older cars like ours had lots of fuel pump failures in the heat of summer and I know you are old enough to remember that. Haha sleek |
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Sorry, I'm with Theorge on this one. There is no way that circulating hot fuel (and I think it is warm at best) back to the tank in going to effect fuel pump efficiency or reliability. I live in Texas where it is 90+ 'F six months of the year and Fiero owners do not see increased fuel pump failures in the summer.------------------
formerly known as sanderson
1984 Quad 4
1886 SE 2.8L
1988 4.9L Cadillac
1988 3800 Supercharged
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