97 EX 78k miles. I did the manifold Seafoam treatment and have an Engine check light. What are the odds of this clearing itself after 100 miles ?

 

not very likely. jump the ecu and find out what code it is?

 

Or you could just try disconnecting the battery, an resetting the ECU. Its worth a shot.

 

i had a cel when i put seafoam through my brake booster line but after i turned it off for the 5-10mins then turned it back on it was gone.. just disconnect the battery or take out the backup fuse

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecenjun &raquo;</TD></TR><TR><TD CLASS="quote"> just disconnect the battery or take out the backup fuse</TD></TR></TABLE>

that would reset the code but woulden't you want to know y the code is there?

 

i dotn know wat my cel was but i was thinking it was cuz i took off my brake booster hose but it went away after i turned my car back on.. never touched the batt or the fuse

 

i doubt the cel was from removing the vacume hose it probably messed up your o2 sensor sea foam killed my cheap bosch o2. now i got a genuine honda o2 and works great.

 

My CEL came on when I SeaFoamed my engine. I shut the engine off, let it sit for 5 minutes, turned it back on and the CEL wasn't there anymore. Reset the ECU.

 

What code are you throwing?

 

just cause the cel comes on and goes off doesnt mean everythings ok if it were my car i would get to the bottom of it the car throws cels for a reason.

 

I started this thread earlier. I disconnect the battery / CEL cleared. The idle seems a little smoother (gripping the steering wheel) now after the Seafoam DOUCHE-ING (sp). I notice only a slight throttle response improvement.
If there is (was) an O2 sensor or other problem from the seafoam I would think I will get a CEL again correct ? I'm writing it off as a random misfire code.

 

I would have ran the code to be sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">My CEL came on when I SeaFoamed my engine. I shut the engine off, let it sit for 5 minutes, turned it back on and the CEL wasn't there anymore. Reset the ECU.</TD></TR></TABLE>

You ecu is probably still storing the code though.

 

So the answer to my question about throwing another code (CEL would come on again) after reseting by battery disconnect is yes or no ?
Thanks


Modified by alotawatts at 3:28 PM 11/28/2004

 

if there is a problem than is will come back, just check it to find out what it is. it coulden't hurt to know.

 

It's not hard to check the code. Any time you get a code, check it, don't just reset the PCM.

 

dunno about you guys but when i used sea foam i got a cel. now my car runs like total ****. cel comes on everytime i drive. the car bucks and cuts off. misfires gay ******* ****
im sure the o2 sensor got owned i run very rich aready. ima order a new one and see.
i put over 300 miles this weekend it seems to be alittle better but its still there.
only happens when you put a decent load on the motor like going 20 up a hill in 3rd and giving at least 25% or more gas. then it starts to misfire and buck. for like 2-3secs then the cel comes on and the car drives normal untill you shut the car off and clear the cel it will happen again untill the cel comes on.
when i change the o2 sensor i'll let you kno if it fixes it

 

I seafoamed my **** and it was like brand new. I dont know if it threw a code while I was doing it, because I was outside the car. I didnt change o2 plugs anything but the oil and filter and it really does run better.

 

Seafoaming the manifold should not thin the oil (require changing) correct ?

 

Yeah first try disconnecting the battery to reset everything and then see if it comes back on.

 

The seafoam process is identical to a fuel system service that we do at my job. When dumpping too much seafoam at once the engine starts to bog and 90% of the time you'll get a code for a misfire. I'm willing to bet that there's nothing to worry about.

Lamar.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">

You ecu is probably still storing the code though.</TD></TR></TABLE>

But wouldn't the code come back if anything was out of order (in terms of not functioning properly)? Why would it store the code? If that's the case, then everyone who has had a CEL come on, would have it automatically erased and stored in the ECU and we wouldn't know that something, in fact, is wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">

But wouldn't the code come back if anything was out of order (in terms of not functioning properly)? Why would it store the code? If that's the case, then everyone who has had a CEL come on, would have it automatically erased and stored in the ECU and we wouldn't know that something, in fact, is wrong.</TD></TR></TABLE>

If the probably does not come back on next time you start the car the check engine light might turn off, but if you check for a code it will still be in the ecu until the period of time is up.

 

but when you seafoam your car, arent you supposed to change the plugs and oil? maybe thats why some of these peeps cars are running like **** , due to not doing wtf your supposed to do. right?

 

Seafoamed.
- Changed Plugs
- Ran 100 miles on Oil, Changed it.

Running Good. Didnt really feel like i gained anything from it.