quick ?? anyone tell me what the base timing for a 89 305 is

 

Quick answer...Yes

 

well....lol

 

ohhh you want to know what it is. My bad
6 BTDC
See that answer took more letters and longer to type out.

 

thanks cause it look like the emm. sticker said 0 band i didn't think that was right now i got to do a search for tps voltage and iac voltage

 

ok just went out and hooked the snap on computer to ther car for tps i got .70 goin up to 4.5 at wot iac was at 40 at at idle the problom i am having is the when i am stoppin or come to a stop thwe car don't want to idle it drops way down the cuts off thenm to restart the car i have to put the gas to the floor i am thinkin the startin part may be the high tps reading but i don't know i have not messed with this type of fuel system before so any help would be appreciated

 

Is your snap on tool some thing like a Modis? I have a Modis and it will give info on the items and can do component test. A 5v signal is the most you should. So I think the TPS is on. Now the IAC is at 40% at idle? Can you drive it with the snap on tool on while watching the data? Better yet have some one else drive while you watch. See what it goes to when you let off the throttle.

 

ya i took it to a freind to analize the data he is a gm tech so i figured he should know we ran a bunch of test and it seems the map sensor has gone bad and its not regulating the vac and fuel when coming off the throttle. oh and the com is accually made by solarious or somee thing like that not the best speller. so ya if any one is havin that kind of prob there is a good starting point

 

The strapon Solus
A map does not regulate vacuum. It measures and tells the computer. When they go bad the computer will compensate with the TPS.

 

ya what he said ..lol like i said i am still learnin on these motors my other ones all had maf so this is all new to me ..lol