Hesitation.. Poping out the intake

Ok guys need some expert troubleshooting advice of my 92 Mustang.. Here the situation, 2 weeks ago Saturday I took my mustang out.. No problems ran great... Next day took it out and it had a slight hesitation and if I gave it gas over 3k RPM's I get a poping out the intake like a backfire... So i cleared my codes in the computer drove the car and got code 13,19 and 85. I know what code 85 is, thats the carbon canister. 13 and 19 are idle issues. First thing I thought of was the idle speed sensor on the throttle body, I replaced that with no luck BUT that did clear up code 19, I checked for vacuum leaks, I didnt find any. So right now I get code 13 and 85 from my computer test. Im not trying to go out and spend $300 on a bunch of new stuff that isnt going to fix my problem.. Does anyone have any suggestions or may have run into this issue... So far Ive been told it could be a number of things.. Plugs, Wires, Coil, Fuel Pump, Fuel Regulator, Sensor on distributor... Would bad O2 Sensors cause this? Anything would be appreciated..

Something I forgot to mention, check engine light does come on when its poping out the intake..... Though since ive owned the car 3 years now in cooler weather the check engine light would pop on from time to time when cruising down the road but if never effected it running...

_________________
- Kurt

64 Falcon
92 Mustang
03 Silverado Z71



<font size=-1>[ This Message was edited by: bud168 on 10/14/05 5:33pm ]</font>

Sounds like a lean condition to me. I don't want to reccomend you just go buy stuff, but maybe if your O2 sensors are old, they could be fouled?

Sounds like because the check engine light is coming on, the O2 sensors could either be bad, or you just have a gummed up connection somewhere.

Of course, it could very likely be something else too.

Maybe the reluctor on the dizzy is messed up? Gap gotten too big? That can really mess up the computer if it doesn't know where the engine is.

<font size=-1>[ This Message was edited by: thekingofazle on 10/14/05 10:01pm ]</font>

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Maybe the reluctor on the dizzy is messed up? Gap gotten too big? That can really mess up the computer if it doesn't know where the engine is.
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You wouldnt believe it but that was it [img]/phpBB/images/smiles/icon_razz.gif[/img]





Im gonna pull my O2 Sensors out and check them out tomarrow..
[addsig]

I amaze even myself sometimes.

After messing around with my car today I think I found that it might be a bad EGR gasket.. I had put a new intake on my car and used the old EGR gasket. Well I took it off added a lilttle silicon and drove that car and it ran great so Im going to pick up a new gasket and hope that fixes it...
[addsig]