OK, well my 99 SE 2.5 has 177K miles, and has had alot of stuff replaced in the last year, new coil, wires and plugs. New injectors, MAF, SVT UIM, LIM, TB and a short ram intake kit. Rebuilt the alt, replaced the a/c compressor, fuel filter and fuel pump. Anyways, the last few months the car has been running great, not getting the MPG i have been looking for, especially with the a/c running, it seems i can only get 21-22 doing 70-75 on the freeway, to where with the a/c off and windows down i can get 27-28 doing the same speed, which to me doesn't make any sense, but it is what it is.
Well i drove home from Austin to Huntsville last Friday via Houston and had a total of 275 miles on the tank and parked the car in front of my house as usual and it didn't move or get started till tonite. Where its parked in front of my house is on about a 45 degree angle front end down. Tonite around 6 pm we got a nice rain shower for about 45 mins and about 7:30 or so when i went to get in the car and head back to Austin for the week the car had a misfire while idling, which it sometimes does for a second or two and clears up, so i didn't pay much attention and went back into the house to grab a few things before heading out, well when i came back out the CEL was flashing and it was missing pretty bad. Well to make a long story short i checked everything over and didn't find anything, i had 5 codes in the ecm, EGR flow excessive and insufficient, cyl #5 misfire, bank 1 sensor 2 O2 malfunction(this one has been active for several months and CEL is normally on from this code) and a system lean code bank 2 i believe.
I had to get back to Austin, so i drove with it hoping it would clear itself up, well as i got close to my place in Rustin it started to idle better, nice and smooth but bucked and misses under any kind of load. I got the car unloaded and pulled back the passenger side floor mat and a nice size water puddle was staring back at me, and it wasn't coolant. well right above the puddle is where the pcm is hanging down from the firewall, anybody think the water was running down onto and into the pcm while leaking onto the floor and this is the cause of my misfire issue? Anybody have a similar problem?
Well i drove home from Austin to Huntsville last Friday via Houston and had a total of 275 miles on the tank and parked the car in front of my house as usual and it didn't move or get started till tonite. Where its parked in front of my house is on about a 45 degree angle front end down. Tonite around 6 pm we got a nice rain shower for about 45 mins and about 7:30 or so when i went to get in the car and head back to Austin for the week the car had a misfire while idling, which it sometimes does for a second or two and clears up, so i didn't pay much attention and went back into the house to grab a few things before heading out, well when i came back out the CEL was flashing and it was missing pretty bad. Well to make a long story short i checked everything over and didn't find anything, i had 5 codes in the ecm, EGR flow excessive and insufficient, cyl #5 misfire, bank 1 sensor 2 O2 malfunction(this one has been active for several months and CEL is normally on from this code) and a system lean code bank 2 i believe.
I had to get back to Austin, so i drove with it hoping it would clear itself up, well as i got close to my place in Rustin it started to idle better, nice and smooth but bucked and misses under any kind of load. I got the car unloaded and pulled back the passenger side floor mat and a nice size water puddle was staring back at me, and it wasn't coolant. well right above the puddle is where the pcm is hanging down from the firewall, anybody think the water was running down onto and into the pcm while leaking onto the floor and this is the cause of my misfire issue? Anybody have a similar problem?
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