replaced injector, but still wont run, need help

[cubasan]

I drive a 91' 240sx auto transmission, yesterday the car started idling bad, the whole motor shook, but it would stay on. I checked vacuum lines and cleaned throttle body and still idled bad. I went to a local mechanic that told me it was the injector (the one nearest the firewall) he wanted 250$ to replace so I did it myself for 89$ but now the car wont stay on, it will crank but that's it. any advice would greatly appreciated

[sparky91]

Hi.One of my injectors failed in the summer. The initial replacement went bad because during installation I rolled the lower o'ring. Same symtoms. Pull out the injector again and check the orings. Lube em up well and re install. Make darn sure you depressurize the fuel rail before removal / installation. Then crank the engine with the subject spark plug removed to ensure all fuel is out before starting. I didnt do the last step and broke off my starter nose cone when the engine backfired from raw fuel in the cylinder. The service manual calls for removal of the entire fuel rail and pressing the injectors out, thus avoiding the fuel danger. Most people in this forum just pull them out and thats ok. Just be carefull.

[carmo]

[navysnail]

so when you try to start it, is it catching or just cranking under starter power?