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TPI system Posted By: 91Fireirocz On: 01-04-2008 @ 22:07:19 Reply | Edit OK. I got a 350 with the TPI system out of a 89 Iroc. Now going to drop it into an 85 Silverado mud truck. I lost the MAF sensor. Now the question is do i NEED the MAF. I am guessing it will run without it. It ran before and i still got the ecm hooked up to the engine. Going to wire up some of the rest of it. -- 91 Firebird 3.1L-Turning into Twin Turbo 89 IrocZ 5.7L TPI-Parts car for Bird. Posted By: roubenbird On: 10-15-2007 @ 23:35:29 Reply | Top | Edit it will run in limp home mode. just buy a new one. they arn't that expensive. -- 
WS6 3o5 TBI 88' Formula, 670cfm Holley Projection Throttle Body Holley Projection Intake Mainfold, Underdrive Pulley,Dual Snorkle & Factory Cowl Induction,now with short straight pipes, UMI Subframe connectors, Fourth Gen seats, Three row Radiator, Posi rear end (2.73),TPI heads, 1.6 roller rockers 15.543 @ 88.21mph Posted By: Calaban007 On: 10-16-2007 @ 00:59:17 Reply | Top | Edit I think the 90-92 3rd gens had speed density. I don't know what you need to convert it. The computer obviously, but other than that I don't know. It would probably be easier just to buy a new one though. -- 
1995 Camaro Z28 & 1989 IROC-Z Stock restoration in progress, well almost stock 
http://www.myspace.com/163296073 Posted By: Green97TAMachine On: 10-16-2007 @ 03:13:17 Reply | Top | Edit New MAF is about $150 and you DO need it. Edit: Link. http://www.partsamerica.com/productdetail.aspx?MfrCode=NIE&MfrPartNumber=25877M&PartType=473&PTSet=A -- 1997 Mystic Teal Trans Am, M6, Leather, Hardtop. TB Bypass, CAI, Pacesetter LT's, Flowmaster 80 Series !CATS, !AIR/E.G.R., !CAGS, And a PCM tune done by Thunder Racing. [ Edited on 10/16/2007 @ 03:24:20 ] Posted By: 91Fireirocz On: 10-16-2007 @ 16:11:06 Reply | Top | Edit Alright thanks guys. That helps alot. I wish i knew where the old one went. Another small question. Do i need anything off the dash wire harness or can i just rewire the sensors to the dash. I got the entire ECM and ECM harness but the dash harness was torn apart. Is there anything major i need from that harness to make it run -- 91 Firebird 3.1L-Turning into Twin Turbo 89 IrocZ 5.7L TPI-Parts car for Bird. Posted By: roubenbird On: 10-16-2007 @ 23:33:47 Reply | Top | Edit again, do it right. im sure that a harness will sell for pennies at a junk yard. --
WS6 3o5 TBI 88' Formula, 670cfm Holley Projection Throttle Body Holley Projection Intake Mainfold, Underdrive Pulley,Dual Snorkle & Factory Cowl Induction,now with short straight pipes, UMI Subframe connectors, Fourth Gen seats, Three row Radiator, Posi rear end (2.73),TPI heads, 1.6 roller rockers 15.543 @ 88.21mph Posted By: 91Fireirocz On: 10-17-2007 @ 00:37:36 Reply | Top | Edit Problem is that the junk yards around here don't have any of those harnesses. My friend is great at wiring so i figured he could do that. I got the harness from the firewall to engine. So most of it is there. We don't need most of the shit off the dash. Plus we are putting aftermarket gauges. -- 91 Firebird 3.1L-Turning into Twin Turbo 89 IrocZ 5.7L TPI-Parts car for Bird.
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