cel on swapped eg
 

just started the eg after swapping in an obd1 zc. when at about 1500rpm it acts like its hitting a rev limiter sounds like a leaking injector but is not cel light is on checked all connections and are fine cant figure out what it is. any clues?

Re: cel on swapped eg
 

check your o2 sensor maybe, make sure all connections are in proper place

Re: cel on swapped eg
 

Does the CEL come on when it acts up at 1500 RPM or does it light as soon as you turn the key? It sounds like you're in limp home mode, is it running really rich? Which ECU are you using?

Re: cel on swapped eg
 

using the zc ecu that came with the swap. the thing is the zc came with a single wire o2 sensor. the harness i used called a four wire o2sensor. the cel comes on when i give it some throttle

Re: cel on swapped eg
 

check you distributor wiring cky/ckp/tdc sensors

Re: cel on swapped eg
 

So you have a ZC ECU, and a ZC engine, so you should wire it for the single wire o2 sensor, and if you don't have a ZC ECU, just use a non-ZC O2 sensor that is compatible with the ECU..

Re: cel on swapped eg
 

so i would wire in the single wire o2 sensor to the green lead in the harness right?

Re: cel on swapped eg
 

what code is it throwing?

Re: cel on swapped eg
 

i have no clue anyone have an obd1 scan tool i can use or is there another way to extract the codes?

Re: cel on swapped eg
 

Just watch how many times it blinks my friend:)