i have a 91 350 tpi camaro. runs good. but sometimes when i put it in drive , the car surges down, and feels like it wants to turn off. but it recovers quick and runs good after that. but when it surges down all the lights go down. they dim alot. my question is ,is this a electrical problem?

 

sounds like it might be a idle air control issue. I would check you timing with the est disconected set that, then check your minumin idle speed adjustment.

 

that is what i suspected. i took it out and cleaned it. but i never did minimum air adjustment. check my timing? u mean moving the rotor clock wise to get my timing up?

 

Yes, I was thinking the timing was retarded. Make sure you disconnect your timing plug with the engine off first. After that is tested or checked than pul the ecm into diagnostic mode and set the idle speed I believe its 450

 

pull out my timing plug? were is it located? and how do i test it

 

you need to disconnect the timing est plug. Check you timing with a timing light on the number one cylinder.

http://www.carcraft.com/projectbuild.../photo_04.html

 

oh ok thx for the pic. i know what your talking about now.is there anyway to do this whit out the timing light? im going to disconect the est cable. then turn on the car and move around the distributor. is that correct? after it sounds good just connect the est cable back?

 

yeh... I would use a timing light

 

thank you. im going to try it and see how it goes. its going to be hard becouse at idle it already sounded good. but ill let you know how it goes. thx bro

 

if your doing it bye ear mark the intake and the distributor base with a permanent marker or nail polish so you can easly set it back if you need.

 

well i did it already. i took the intake air box off. it sounded like it was sucking lot of air, when i had the distributor at a even idle. then i turned it off connected the est connection. and one thing ive noticed was that it starts right up. b4 this when it was hot it would crank for like 3 secs before it started. i dint drive it around to test it fully. but its starting right up. i wonder if i messed up back then when i took my intake manifold off (becouse of oil leak).

 

Bob's your uncle

 

thx bro. replied so fast realy appriciate it.

 

np, ill send you the bill... jk

 

runs good, but i lost all power. im going to recheck tommorow

 

maybe you should invest in that timing light

 

yes seems like i have too. im looking at prices as we speak

 

done got it back massive torque again. but it cranks alot b4 start. any relation between timing and starting?