HELP!!! My throttle response is very slow on my 88 mazda rx7, it also idles roughly and backfires. Ive replaced the plugs and wires (paying close attention to leading and trailing) and I replaced the fuel filter. Any help would be greatly appreciated. If you need more info or have a question let me know and Ill see if I can help....

 

Test and adjust the TPS, fix the vacuum leaks.

 

How do I chase down or test for leaks in the vacum hoses?

 

There's is vac lines pressure sensor vac line goes to a nipple on the upper intake manifold...there is also 2 nipples on the upper intake mani near the the fuel injectors... 2 lines for air control valve on the lower intake manifold... one goes up to the thermowax thing on the thottle body.. The thermowax thing to a small diafram on the front of the thottle body.. Then on the spark plug side near the front of the motor there is " the rats nest" there r 4 soeleniods for n/a search the colors.. One is egr.. fuel pressure regulator.. Air control valve... damn I can't remember the last one its a mess of vac lines there... check all of that... test the oms of the bypass air control valve... is I remember rite is 10 to 12... Ill repost with the rite ohm...

 

There's is vac lines pressure sensor vac line goes to a nipple on the upper intake manifold...there is also 2 nipples on the upper intake mani near the the fuel injectors... 2 lines for air control valve on the lower intake manifold... one goes up to the thermowax thing on the thottle body.. The thermowax thing to a small diafram on the front of the thottle body.. Then on the spark plug side near the front of the motor there is " the rats nest" there r 4 soeleniods for n/a search the colors.. One is egr.. fuel pressure regulator.. Air control valve... damn I can't remember the last one its a mess of vac lines there... check all of that... test the oms of the bypass air control valve... is I remember rite is 10 to 12... Ill repost with the rite ohm...

 

I forgot to mention that my fuel pump just runs forever..... When i first turn on my key it doesnt run for a few seconds then quit it just runs forever... Im defianatly gettin fuel i just dont know if it is enough... any ideas on what could cause this and could this be what is causing the slow throttle response, rough idle and backfiring?