need help! consequences of running rich?
 

I just did a search and found the problem(I think that my 87 t2 was running rich due to my 02 sensor being rigged up w/ speker wire from previous owner). but i just registered it and am driving it though not too hard :uhh: and basically my question is what are the long term consequences of running the engine rich?:I lowered the fuel at low throttle on my safc but thats not the proper solution(i know this) so untill about a week or two if i run the car not too hard will i be ok or am i speeding doen death row?

Also my motor mounts have taken a poop on me. how are the ones from banzai racing? can ne onegive me feedback from personal expierience? THANKS A MIL. FELLAS.-Erik Montalvo

running rich only means you get crap fuel mileage and less chance of detonation IIRC, btw N/A's run real rich period unless you tune them with a device like you had

yeah i just got it tageed up yesterday ,dropped 20 bux int he tank and lost a quarter tank in like 25 miles! so is that it or ? my idle really sucks and youll be high in 2 minutes if you stand behind my car. no one has any personal experience w/ aftermarket motor mounts?-Erik

i actually took quite a bit out with a safc using a wideband of cousre(cruising). but according to some on the forum, for what they want driving at wot i had to put some into it. this was with a exhaust and cone filter also.

uhhh no...that is not normal at all...I think ive been getting about 20ish miles to the gallon right now, need to fill up in th emornign to confirm. But no...there is a problem thats too rich. What year is yoru car and what kind of exhaust and mods are you running?

Scalliwag sells nice solid mounts if you want to go that route...

i have an 87 w/ 3 inch dp and exhaust safc. fcd.. hks air filter.. a rigged up 02 sensor. and thas pretty much it i have greddy boost cntrl. which im runnig at stock right noe. pleease help!!!!



thanks ill see if maybe i can send a pm as my motor mounts are :tightass:
thanks for help-Erik

The O2 sensor takes over the SAFCII settings right at cruise? AFAIK Anyways

Anyways, most times you're stuck taking away fuel, the ONLY way to tell is to take it on a wideband or get it dyno tuned.

Also a big negative to adding fuel (when you're bored) is clogged catalytic converters when they are already on the way out, don't ask me how I know. :uh:

- Tech

Ummm....I must ask....how do you know?

I've seen more negative feedback about him than anyone else in the Good Guy/ Bad guy section

lol, it's the reason my car has no power down low or up high right now.

I got bored one day, even though I knew the cats were smelling like complete ass, I decided to add 10% of fuel just being bored, the car wouldnt literally go past 7k rpm at all, it would just act like a two stage launch system (bouncing of the rev limiter).

So now, it does the same thing just a little less worse, all from running pig rich out of boredom.

How intriguing....does that mean you need to get that cat replaced or you fouled somethign else....Im curious actually since I know my S4's exhaust is shot, save teh cats maybe...and my S5 is maybe just as bad...

I checked the spark plugs and everything, they look fine, it's been a gradually bad problem over time, when I added fuel it just sent it over the edge.

We'll know Saturday whether it was the cause or not...then again the supercharger goes on that day as well.

Yeah and I am still waiting on those mounts 2 months later. I will never do business with him again. No e-mails, replys, nothing.

i'm also running pig rich..infact..i think my injectors could be leaking cause sometimes after i rev to 3.5k or somewhere along that range and i take it out of gear the rpms drop so much it actually dies ....and my spark plugs are black..infact..my old ones had a crust on them that i can actually hit with a piece of metal and it will flake off...i can smell gas and it goes inside the cabin and smells so bad i know i must be losing tons of brain cells.

thanks all youze guys!!! I know my o2 sensor is shot completely and the injectors probaly are the same ones since the veehicle was produced. so that will be my next step if i dont upgrade my injectors i will send minmes out to clean if not re place but right now the o2 sesor is on my list for right now. I know Im running rich as hell b/c like i said i cut down the fuel at low throtle and idle fine. the problem is i cut it a quarter if not more a-ways down on my safc! then when i raise it back to normal its not that bad but definately a noticeable diffrerencre. i just wanted to make sure that it would be ok to drive for a weeke maybe two til li can order and recieve a new o2. thanks again guys for all.-erik

scalliwag ya right i have been waiting for mounts for 2 months or more and not a word from him.

There are several long term effects of running righ. First and foremost, you end up wasting a lot of fuel and polluting much more then you should. If you still have cats, you can plug up your cats. You will foul plugs more often, and get the black sooty deposit on your bumpers. If you are running excessivly rich for a long time, you also increase engine wear. The excess fuel whipes the oil film off the housings/plates, causing more friction and hence wear. If the condition is bad enough, the oil can get polluted so much by excessive fuel that your oil level actually rises and the oil gets thinned to the point where it can no longer properly lubricate. You end up spinning bearings, seizing engings, etc.

Rich can be just as bad as lean, but not as obvious a failure.

im bringing this thread back up because my car is now running rich

things ive noticed that it smells like gas in the cabin everynow and then

if my injectors were leaking like such as whoever said they were, my car would decelerate so much that it would die from what i understand, my car doesnt do this

i need to check my tps, cars idle is set around 850 rpms, what setting should the tps be at idle?? i think i set mine to 1.5 at idle....hmmmm

i need to check my O2 sensor and see if the cable came off or something because it just recently started to run rich, was never able to pop a flame before but now i can, have the black soot on my bumper and everything

but ive also looked for fuel leaks, didnt see any, have a brand new PD in, cleaned the whole engine bay and no signs of leaking, ive jumped the fuel pump as well to see if fuel would come out anywhere

another thing i want to ask is that with my old engine, i would crank the car for about a second and it would start right up, but now with this new one, i have to crank it for about 3 seconds to start up, is it becoming flooded?? i no i have to change my starter out as to it has a dead spot in it

i dont have a code reader for the ecu but, if my ecu was bad could this affect my a/f ratio as well??? id think that if the ecu was bad the whole car wouldnt work properly in the first place

The absolute first thing you need to do is a full tuneup. Plugs, wires, filters, fluids, TPS adjustment (1K at closed throttle with a fully warm engine is the spec), etc. etc.

If that doesn't do it, have your injectors professionally serviced. While they are doing the injectors (generally takes a day) replace the engine coolant temp sensor and intake air temp sensor. Both are cheap.