Bogging; CE Light

[NoSHOAllGo]

It all started a few weeks back. I was headed back to my parents home from Sacramento because of a break I got in school (U.T.I) an the weather wasnt all that great.

My CE Light would randomly flash, and a hard ****, I mean hard, a hard enough **** to throw you around like a ragdoll even buckled up. Eventually, the SHO would completely shut down every system on the car so Id find myself scrambling to the shoulder lane with power nothing. Sitting for 10 min to let it cool down an catch its idle again. So, I kept on truckin right after, an what do you know, did the same thing again. so I threw my foot into the gas pedal keeping the revs up high so it wouldnt die again on the freeway. Made it to a Chevron in the outskirts of Dixon to call my parents at late o'clock to get towed home by AAA.

Well luckily I previously ordered valve cover gaskets becuase I knew the old ones were shot,an my plugs an plug wells were completely drenched in oil, so I figured this would cause the bogging and hesistation. Done deal did the gaskets plus changed the oil, drained the old coolant an added new coolant an also replaced the starter.

The bogging continued once again earlier this morning leaving my buddies house.

Someone please enlighten as I start my next course in school tomorow afternoon an I need to make it there an to my apartment.

Thanks in advance

 

[LJRuddy]

Crank sensor?


Pull codes as well... Check for a MAF code and possibly a bad MAF connection.

 

[gbizzle27]

I am betting crank sensor. I just had the same problem with mine, and the problem was that the wire was rubbing on the water pump pulley. I pulled the accessory belts and adjusted the wire and it hasn't bothered since.

 

[NoSHOAllGo]

Oh I posted this in the wrong section this isnt maintenance. Sorry!

But cool thanks man Im about to go ahead an pull codes an see what I get

Anyone else if you have any input let me know!

 

[NoSHOAllGo]

Just pulled codes an got the following

KOEO : 15 and 81

KOER : 41, 77?

Running lean may make sense. Any suggestions?

 

[yzstud]

a flashing cel usually indicates a severe problem with the catalyst system and suggest that it needs to be taken in immediately to a dealer

i am guessing that your catalytic converter is plugged
start the car up and listen to the exhaust and see if it is noticably quieter then it was before
or run it at night and see if the cats are glowing red

 

[NoSHOAllGo]

I wish it were that.

But the cats were repaced earlier this year, an I have an exhaust leak before the y pipe anyway. Maybe thats why it may be running lean.

 

[NebraskaSHO]

Don't start out in 3rd gear.

Oh wait

Lots of good ideas in here, good luck.

 

[hawkeye18]

15 = ECA ROM test failure. (I think ECA means EEC, do you have a chip in there?)

81 = IAS circuit failure. (not a clue what that means, is it talking about the idle air controller?)

41 = HEGO sensor circuit indicates system lean (rear). (if it's just one bank, chances are good that the O2 sensor is toast. Replace both sensors as the other one's not far behind.)

77 = Brief WOT not sensed during self test; operator error. Rerun test, goose it harder. If this code is received during cylinder balance test, then a TP change was detected- rerun test, making sure not to disturb the throttle as it is running.

Also, yzstud, what the **** are you talking about? Since when has a CE flashing ALWAYS meant your cats are clogged up? wtf? EEC-IV isn't even capable of testing cats! There are no O2s located after the cats!

AND! You should NEVER take it to a dealer, unless you want your wallet emptied and your car unfixed! the **** yzstud, do you work at a dealer? if you do, shame on you!

 

[yzstud]

maybe i should have clarified a little better.
A FLASHING CHECK ENGINE LIGHT INDICATES A MISS THAT HAS THE POTENTIAL TO DAMAGE THE CATALYST SYSTEM

I never meant a flashing cel points to a clogged converter, but, he should still quit driving the car AT ALL COSTS or he will end up damaging something

jeez hawkeye, trying to make me look like more of a retard then i already am?

 

[hawkeye18]

Well... I suppose that, since EEC-IV only really checks the sensors that could affect A/F ratio (ACT, ECT, TP, MAF, O2, IAC, IMRC, etc), then if the CEL is flashing then yes, your catalyst system could be affected... eventually.

But running to check your cats every time your CEL comes on is like running to wal-mart to get a bottle of rogaine when you find out you have cancer. damaged cats is a result of whatever is causing the CEL. You need to find out what is causing the CEL first.

The only light that means you NEED to STOP DRIVING RIGHT NOW is the red oil light. The CEL is not usually something catastrophic. Bad, yes. Needs to be fixed, yes. But will it blow your engine up...? no. Most likely not.

 

[Storm-Chaser]

You're losing spark. That in turn results in the fuel pump relay (CCRM) shutting down the fuel pump (hence the oxygen sensor code) once the rpm drops (below 400 rpm I believe).

Loss of spark could be the crank sensor, or the computer EEC, or the cam sensor, or an electrical short.