Alright so my check engine light is on in my 01 Prelude base. I hooked it up to an obd2 diagnostic. I am not very familiar with obd2. The diagnostic read MISFIRE CYLINDER 1/2/3/4 and CATALYTIC CONVERTER. I suspect I may need a new dist. cap and rotor, possibly an ignitor. The unused gas would cause the cat. to go bad. However Im not sure if this is the issue. I appreciate all of the RELIABLE information possible. Thanks for looking
Last edited by blue5thgenbb; 11-04-2008 at 09:56 PM.
my check engine light came up too, and it read misfire cylinder 2, I replaced my spark plugs. My car is still idling rough, and check light is still on. What else should i check or replaced? Anyone?
Cleaning out EGR ports might help if replacing all those parts doesn't do anything.
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Originally Posted by gatewayjoe
ya the bolt got stuck and broke off he said it crossed thred and thays why they got a replacement engine so is there a why to fis it are do i need a new crank
I dont have a rough idle. It misfires occasionally during a cold start or right around 2,000 rpm under VERY light acceleration. After replacing the goods I reset the ecu and within two days it came back on..
Hmmm. Well now that I think about it, cleaning out the EGR ports probably wouldn't do anything. Yours might not be clogged. If it were one or a couple cylinders reading a misfire, then I would do the cleaning.
Have you checked the EGR system for proper function? Maybe it's always open.
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Quote:
Originally Posted by gatewayjoe
ya the bolt got stuck and broke off he said it crossed thred and thays why they got a replacement engine so is there a why to fis it are do i need a new crank
my check engine light came up too, and it read misfire cylinder 2, I replaced my spark plugs. My car is still idling rough, and check light is still on. What else should i check or replaced? Anyone?
For you, I would recommend an EGR port cleaning.
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Quote:
Originally Posted by gatewayjoe
ya the bolt got stuck and broke off he said it crossed thred and thays why they got a replacement engine so is there a why to fis it are do i need a new crank
Ports are on top of the intake manifold. The EGR valve is on the passenger side of the intake manifold. Do a search and you'll find instructions and a parts list.
The reason I recommend cleaning the ports is because during my own searches on this forum, I found that having one or more clogged EGR ports forces all the exhaust from the EGR system to the cylinders with unclogged ports. This puts too much exhaust in one cylinder and too little air/fuel. The exhaust is hot so it predetonates the mixture, causing a misfire in that cylinder. This is my understanding. People who have cleaned out their ports mentioned a dramatic improvement in how the engine runs. I remember at least one person saying it fixed their misfire problem. I haven't done this yet, but I plan to just to see if it will help how my engine runs (it's a bit rough).
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Quote:
Originally Posted by gatewayjoe
ya the bolt got stuck and broke off he said it crossed thred and thays why they got a replacement engine so is there a why to fis it are do i need a new crank
I have bad news and good news! I have the same problem and found out what it was. I had a misfire on Cylinder 2. I changed the fuel injectors, did a tune up (Spark plugs, wires,rotor,etc) I bought a new catalytic and nothing. same problem. Wasted about 500$ just there. what my car does is when I turn the car on when its cold the check engine light blinks like crazy only when its cold. Well one of my heads is only pushing 140 when its hot and 116 when its cold. the other three are pushing 180 like they should meaning you need to change it. I was charged $1,000. If you blow up your engine good luck! I have Type SH and does engines go for $4,500! F*** that I prefer to pay 1k. Hopefully your guy's cars aint doing the same as mine cause your in trouble. Better fix it ASAP!
Yah the car just got a tune up and everything thing I did a new cap rotor plugs etc. I've heard a lot of good thing about this. I also know that the intake manifold is two peices so you can take it apart if you need to. But if this fixes your misfire it should fix mine.
what my car does is when I turn the car on when its cold the check engine light blinks like crazy only when its cold. Well one of my heads is only pushing 140 when its hot and 116 when its cold. the other three are pushing 180 like they should meaning you need to change it.
Huh? One of your heads? 140 what? Change it?
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Quote:
Originally Posted by gatewayjoe
ya the bolt got stuck and broke off he said it crossed thred and thays why they got a replacement engine so is there a why to fis it are do i need a new crank
I think he means he is getting low compression in one of his cylinders, not his head. I guess it could be helpful to do a compression check. I no longer have a code for a misfire. I just have a catalyst code. Could be due to having a gutted vibrant cat or it could be a failing 02 sensor. Not really sure.
I think he means he is getting low compression in one of his cylinders, not his head. I guess it could be helpful to do a compression check. I no longer have a code for a misfire. I just have a catalyst code. Could be due to having a gutted vibrant cat or it could be a failing 02 sensor. Not really sure.
Sorry guys. Yeah cylinders is what i ment to say. sorry for confusion.
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