forcefedcivic27

I have a 97 honda civic ex coupe d16y8 that was turbo charged for about 2-3 months and now is back to nat. aspiration. I found that ever since the turbo was on and now that it is off, there is consistantly a studdering problem that is becoming more and more persistant. (When driving it wll feel like a fuel cut, and studder then go back to ok. It takes about 5-10 mins of driving to become noticable. It seems to happen worse or more after high rev.(rpms). When the problem starts to occure, my boost/vac. gauge will drop from a normal 20psi to close to 10psi. the engine begines to sound as if it may stall the recovers momintarily. Could this be timing? I have replaced my fuel pump, my spark plugs, and checked my injectors. (All is good there.) All my vac. seals are ok. There is only bout 60,000 miles on my car so timing belt seems slim chance. Any ideas? This problem is really frustrating. If anyone knows what this could be, or can help in anyway, please let me know. thanks.

3.3.3

check the TPS sensor and make sure it is properly hooked up. are you throwing any codes?

Deemeetree

When you went to Forced Induction, did you upgrade the ignition system by using different spark plugs or ignition wires to compensate having a turbocharger? Maybe your timing and ignition is tuned for a turbocharger, but now that you don't have as much air coming into the motor, you're detonating?

3.3.3

^^^ good point overlooked by me.

forcefedcivic27

no never had upgraded ingnition what so ever, and never tuned stock.

forcefedcivic27

ill check TPS but why would that fall out?

3.3.3

it might not have fallen off, but in the process of removing your turbo components, whoever took off the parts might have pulled the plug to the sensor and mixed it up with another one which has the same plug design. mixed them up basically.

forcefedcivic27

I installed the turbo and am now inbetween turbo projects. I am switching to a t25 hybrid turbocharger, and need to fix this problem befor it goes on...if anything ignition wise, i would think maybe distributor and elec. timing?