Engine misfires after its been raining?
05-05-2009, 11:29 AM
#1
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W210 E55
Engine misfires after its been raining?
Hi guys!
Last week I noticed my E55 would hesitate from low RPM when you'd suddenly give the throttle a prod. engine wouldn't die or anything, but from say, 2k RPM's, when you'd step on it to overtake or accelerate moderately, the car would bog down.
first things that went thru my mind were fuel pump going bad, or some electrical problem related to the high tension wires perhaps? or maybe even bad fuel?
after a while, the problem went away, and i'd forgotten about it, since i used the car a lot over the weekend, and it never put a foot wrong-- in traffic, and some WOT runs with a friend's RS4.
but just today on the way to work, it did exactly the same thing.
and i realized that both occasions, the car had been left out in the rain overnight. i live in the tropics, and when it rains, here it REALLY rains. over the weekend when the car behaved normally, there was no rain at all.
any ideas what it could be? does it make sense? i'm thinking i could be getting some kind of condensation somewhere and its affecting the electricals or electronics? and once the car has ran for a bit, things dry up / evaporate / etc?
car has never behaved like this before. its all stock, apart from an Upsolute chip which i've had several years. just changed MAF and high tension wires about 6 mos ago.
thanks in advance for advice!
Last week I noticed my E55 would hesitate from low RPM when you'd suddenly give the throttle a prod. engine wouldn't die or anything, but from say, 2k RPM's, when you'd step on it to overtake or accelerate moderately, the car would bog down.
first things that went thru my mind were fuel pump going bad, or some electrical problem related to the high tension wires perhaps? or maybe even bad fuel?
after a while, the problem went away, and i'd forgotten about it, since i used the car a lot over the weekend, and it never put a foot wrong-- in traffic, and some WOT runs with a friend's RS4.
but just today on the way to work, it did exactly the same thing.
and i realized that both occasions, the car had been left out in the rain overnight. i live in the tropics, and when it rains, here it REALLY rains. over the weekend when the car behaved normally, there was no rain at all.
any ideas what it could be? does it make sense? i'm thinking i could be getting some kind of condensation somewhere and its affecting the electricals or electronics? and once the car has ran for a bit, things dry up / evaporate / etc?
car has never behaved like this before. its all stock, apart from an Upsolute chip which i've had several years. just changed MAF and high tension wires about 6 mos ago.
thanks in advance for advice!
05-05-2009, 11:55 AM
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W210 E55
05-05-2009, 12:00 PM
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99 model w210 e55 amg
kay speedyfix bro since merun din sya e55 sanay na sya dun sa car. or pwede din naman fuse lang bro!
OT: how was the upsolute chip? manny told me about your car! did you feel the difference? is it worth it? im also planing on getting one! maybe migs from speedyfix can help you! or rking from eurocarclub.ph he has a diagnostc machine for our car he owns an e50 and e55! i love the e55! sarap!
OT: how was the upsolute chip? manny told me about your car! did you feel the difference? is it worth it? im also planing on getting one! maybe migs from speedyfix can help you! or rking from eurocarclub.ph he has a diagnostc machine for our car he owns an e50 and e55! i love the e55! sarap!
05-05-2009, 01:06 PM
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W210 E55
kay speedyfix bro since merun din sya e55 sanay na sya dun sa car. or pwede din naman fuse lang bro!
OT: how was the upsolute chip? manny told me about your car! did you feel the difference? is it worth it? im also planing on getting one! maybe migs from speedyfix can help you! or rking from eurocarclub.ph he has a diagnostc machine for our car he owns an e50 and e55! i love the e55! sarap!
OT: how was the upsolute chip? manny told me about your car! did you feel the difference? is it worth it? im also planing on getting one! maybe migs from speedyfix can help you! or rking from eurocarclub.ph he has a diagnostc machine for our car he owns an e50 and e55! i love the e55! sarap!
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05-07-2009, 01:09 AM
#10
Super Member
what about moisture build up in the spark plug wires? i think I get a rough idle in the morning due to this until the car warms up on the rare occasions its parker outside over night. The intense humidity in the Phillipines might be doing this?
