ZC problem again
Ok here we go i had this problem before i took off the turbo now it is NA again and the problem is back. At 5,000 rpm it falls flat on its face with no gas, AF gauge goes flat.
Replaced computer 3 times replaced fuel injectors 2 different sets replaced fuel filter replaced Fuel Reg, Did every thing but replace the fuel pump its is a NA DOHC ZC Just as a second, third fourth ect opinion. I have replaced everything BUT the motor replace the Fuel Pump? TIA |
Re:ZC problem again
this happens in any gear at and engine temp?
any popping noises from exhaust? any other noises? WAS turbo, so do u have a AFC w/ 450cc's or the OEM Inj back on? |
Re:ZC problem again
no popping also have to turn the key on and off 3 times on a cold start up. No AFC stock injectors in. No other noises that would be odd. I think It is the stock fuel pump that has about 246,000 miles on it or close to that
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Re:ZC problem again
Originally Posted by ShadowRex
no popping also have to turn the key on and off 3 times on a cold start up. No AFC stock injectors in. No other noises that would be odd. I think It is the stock fuel pump that has about 246,000 miles on it or close to that
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Re:ZC problem again
you have to prime the thing 3 times before starting it? do you try to crank it each time or just on -> off ?
noticed any bad fuel milage? |
Re:ZC problem again
fuel miladge never was great. Turn on let it cycle (check engine light off and fuel pump stops) crank no start. stop trun key on off cycling 3 times then it fires right up. no fuel leaks.
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Re:ZC problem again
Originally Posted by ShadowRex
Turn on let it cycle (check engine light off and fuel pump stops) crank no start.
how new are the plugs, wires, cap, rotor, ignitor, coil? |
Re:ZC problem again
Sounds like your fuel pump cant hold pressure when its turned off.Its leaking it back into the tank. Falls on its face do you mean it wont go beyond 5k. can you just rev it with the car parked to 5k and beyond if it doesnt sqirt some carb cleaner in their and see if it revs beyond that then.
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Re:ZC problem again
plugs ect brand new. ignitor, coil havent tested them.....
Car parked its great Just under ANY load like driving falls on its face around 5,000 rpm Checked the TPS about 5 times. Um i think thats it lol lets diagnose this puppy lol |
Re:ZC problem again
man.. so many "could be this" things to change/check.
things i would replace, whether or not they solve the problem can't hurt to be new. start w/ pump, its old like you said. then coil/ignitor (after market?, MSD?) check injector seals for leaks. whats the vac/boost gauge read, SB 0vac |
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