rtralabama

i put seafoam in my XJ in the TB, gas, and oil and i wait 5 then turned it on and a little bit of smoke came out. not the check engine light is FLASHING and i cant go above 3000 RPM. any idea what the problem might be

ken72

Either your O2 sensor is shot or your MAP sensor. I cant remember but I think its a sign of a bad map sensor. Remove it and see if it got clogged up when you seafomed it.

shook0002

Flashing check engine light usually means a dead miss, pull your plugs and check/clean them.

rtralabama

i turned it off then let it sit for a little then turned it back on and it wasnt flashing and went up to 4300 rpm and then i shut off again and waited and then it did the flashing again.

HCCAFan

Smoked a little? Should of smoked like hell. How did you put it in the throttle body?

91XJLINK

Seafoam can break down alot of gunk, when that gunk is broken down and on its way to being flushed out, the debris or particles can plug sensors. More that likely your o2 sensor.

rtralabama

yeah in the TB, i thought it shouldve smoked like crazy. it has 68k on it.

HCCAFan

How did you put it in the TB is what I am asking.

rtralabama

slowly poured it in and then waited cus engine would hesitate then added more. about quarter to a third of the bottle.

wildbill1

Check the code that's set. Whenever I get a "check engine" light, the first thing I do is find out what code has been set be the ECM. That makes diagnosis much easier.

tjwalker

A flashing check engine light indicates a "serious misfire", which if continues, can harm your catalytic converter.

Start with checking/replacing the plugs. Simple things first. Always.

HCCAFan

I wouldnt be replacing crap yet. You just poured it in TB, not thru a vacuum line or anything?

HCCAFan

If so, spray the hell outta the TB with TB/Mass air flow cleaner and run it. It will probably clear up. The light is only flashing because of the miss.