94 gen1 pro-m problems

shawn94 · 02-19-2007, 03:01 PM

hi , everybody having problems with my truck maybe yaw can help.changed alot of things on my lightning,now it's not running at all.f-303 cam,30lbs inj.,75mmtb,eq.headers,alum.gt40x heads,pro-m mass air.truck ran after that,but not good.engine light stays on and spark knocks alot off idle.now it shut down at traffic light and want even fire.I was told it needed comp. tune. dont know where to start.any help would be appriated

lightning_2000 · 02-19-2007, 03:13 PM

sounds like timing is off. check vac leaks also

i would say timing since its spark knocking

shawn94 · 02-19-2007, 03:32 PM

checked timing 10degres. no vac. leacks

Driver · 02-19-2007, 03:39 PM

Unplug Mass Air while Running and see if it runs better If not Plug M/A back up then unplug the O2 Sensor or sensors.

shawn94 · 02-19-2007, 03:44 PM

runs worse with mass un plugged . right now its sitting at a shop . there trying to get to fire . i tried unplugging it before it quit on me

lightning_2000 · 02-19-2007, 03:45 PM

maybe the pickup in the dizzy is going bad

shawn94 · 02-19-2007, 03:52 PM

dont know what in the dizzy is .all i know is it ran better stock. has any body else had problems with pro-m stuff.

lightning_2000 · 02-19-2007, 03:58 PM

i have the pro m on mine.. its plug and play everythings labeled.

the dizzy is the distributer.. sometimes the pickup coil goes bad so it doesnt fire...

it really sounds like a timing problem... maybe the plug wires are on wrong

shawn94 · 02-19-2007, 04:04 PM

i,ll have them check the pick up coil.i did switch back to stock dist. plugin peice on the fender but did not help any thing.

lightning_2000 · 02-19-2007, 04:07 PM

restab the distributer then redo the wires...

sounds like plug wires or timing

shawn94 · 02-19-2007, 04:14 PM

i'll have them check that.should my truck run smooth with no tune just the pro-m on it or should it have some sort of custom chip.that is after i get it running again

02-19-2007, 03:01 PM	#1 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	94 gen1 pro-m problems hi , everybody having problems with my truck maybe yaw can help.changed alot of things on my lightning,now it's not running at all.f-303 cam,30lbs inj.,75mmtb,eq.headers,alum.gt40x heads,pro-m mass air.truck ran after that,but not good.engine light stays on and spark knocks alot off idle.now it shut down at traffic light and want even fire.I was told it needed comp. tune. dont know where to start.any help would be appriated

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02-19-2007, 03:13 PM	#2 (permalink)
lightning_2000 Stroked & Blown Join Date: Apr 2005 Location: McMinnville, Tn Posts: 3,187 View this user's gallery iTrader: 21 / 100%	sounds like timing is off. check vac leaks also i would say timing since its spark knocking

02-19-2007, 03:32 PM	#3 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	checked timing 10degres. no vac. leacks

02-19-2007, 03:39 PM	#4 (permalink)
Driver Registered User Join Date: Jul 2005 Posts: 77 View this user's gallery iTrader: 2 / 100%	Unplug Mass Air while Running and see if it runs better If not Plug M/A back up then unplug the O2 Sensor or sensors.

02-19-2007, 03:44 PM	#5 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	runs worse with mass un plugged . right now its sitting at a shop . there trying to get to fire . i tried unplugging it before it quit on me

02-19-2007, 03:45 PM	#6 (permalink)
lightning_2000 Stroked & Blown Join Date: Apr 2005 Location: McMinnville, Tn Posts: 3,187 View this user's gallery iTrader: 21 / 100%	maybe the pickup in the dizzy is going bad

02-19-2007, 03:52 PM	#7 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	dont know what in the dizzy is .all i know is it ran better stock. has any body else had problems with pro-m stuff.

02-19-2007, 03:58 PM	#8 (permalink)
lightning_2000 Stroked & Blown Join Date: Apr 2005 Location: McMinnville, Tn Posts: 3,187 View this user's gallery iTrader: 21 / 100%	i have the pro m on mine.. its plug and play everythings labeled. the dizzy is the distributer.. sometimes the pickup coil goes bad so it doesnt fire... it really sounds like a timing problem... maybe the plug wires are on wrong

02-19-2007, 04:04 PM	#9 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	i,ll have them check the pick up coil.i did switch back to stock dist. plugin peice on the fender but did not help any thing.

02-19-2007, 04:07 PM	#10 (permalink)
lightning_2000 Stroked & Blown Join Date: Apr 2005 Location: McMinnville, Tn Posts: 3,187 View this user's gallery iTrader: 21 / 100%	restab the distributer then redo the wires... sounds like plug wires or timing

02-19-2007, 04:14 PM	#11 (permalink)
shawn94 Registered User Join Date: Jul 2006 Posts: 9 View this user's gallery iTrader: 0 / 0%	i'll have them check that.should my truck run smooth with no tune just the pro-m on it or should it have some sort of custom chip.that is after i get it running again