bad idle on a dead stop.

fast 50 · 03-01-2009

having trouble just installed new 302 everythings new fuel regulator new fuel pump injectors mass air meter heads cam ignition. but it has to idle at 9hun or itle rev up n down and then it shuts off. the when i push it the fuel presure goes from 38 psi. to about 20 psi. help

spdjnky_42 · 03-01-2009

SOunds like vacuum leak. Is your vacuum to your AFR hooked to the plenum? Is you MAF calibrated for the injectors, do you have good conn w/ maf? What injector size did you use?

**EagleAutosports** · 03-02-2009

Could be a vacuum leak, a bad electrical connection, bad sensor like the IAC or TPS, or retarded timing.

fast 50 · 03-02-2009

kinda leaning to the vacum leak i got the 30 pound injector and the MAF is calibrated to the injectors maybe i dint hook up the vacum lines right?

samotrx7 · 03-02-2009

The trick flow stage 2 is kind of a big cam for the stock computer, you might jus need to get it dyno tuned. But jus to avoid any stupid probs check for a vacuum leak just in case.

fast 50 · 03-02-2009

that could be too it was my friends car befor n he had that cam with the procharger blower n it was kinda hard to drive under 2 grand.