intake fixed...no more "issues"...except check eng - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-07-2005, 10:08 PM   #11
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yeah id say its definetely the map sensor...we took it out for a drive...or moreso my dad drove and i followed him in the truck(just in case)...he said it lacked its usual peppiness and through all this ive learned that the map sensor or manifold absolute pressure sensor senses the changes in manifold pressure and vacuum and sends these signals to the computer which uses them to determine the proper timing....so if its shot, we i assume it is because its in pieces then that would definetely explain the lackluster performance if the timing is all screwed up....on a good note, ive noticed quite a bit of increase in throttle response..i credit this too cleaning all the crap off the throttle body, as well as the new upper intake having no gunk on it as compared to the old one...

we shall see if the butt dyno notices anything once i get a new map sensor...so im glad this is over for now...

and whoever congratulated me on a job well done...we should probably just make it a job done...certain things didnt get done in the way i wouldve had them done...such as dad not being able to figure out how to get the torque wrench to do 89 in. lbs....so just tightening them with a nut driver and one hand...then barely touching them with a ratchet....its ghetto i know, but its holding together so far
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Old 07-07-2005, 10:14 PM   #12
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Quote:
Originally Posted by LittleHoov
IT LIVES!!!!!!!!!!!!!!!!!!!!!!!!!!

well it was in fact a PCV problem....as it turns out, me and my dad are dumasses we somehow neglected to put the little metal canister, with the nipple on it and little rattles? in it...whatever that thing is, inside the PCV assembly....so yeah, it didnt quite work right, but it does now...runs like a champ! im happy, i got my baby back!

BUT! it does still have a check engine light, im thinkin either it hasnt cleared the codes from the original incident...or the fact i ripped my MAP sensor in half while we were messing with the PCV valve....the MAP sensor does sit on top of the PCV assembly correct? whatever that sensor is...it still seals the whole, but its Fed up...so i think we need a new one of them things that would definetely throw a code wouldnt it?
thats ok it happends to the best of us
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Old 07-07-2005, 10:18 PM   #13
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Quote:
Originally Posted by LittleHoov
yeah id say its definetely the map sensor...we took it out for a drive...or moreso my dad drove and i followed him in the truck(just in case)...he said it lacked its usual peppiness and through all this ive learned that the map sensor or manifold absolute pressure sensor senses the changes in manifold pressure and vacuum and sends these signals to the computer which uses them to determine the proper timing....so if its shot, we i assume it is because its in pieces then that would definetely explain the lackluster performance if the timing is all screwed up....on a good note, ive noticed quite a bit of increase in throttle response..i credit this too cleaning all the crap off the throttle body, as well as the new upper intake having no gunk on it as compared to the old one...

we shall see if the butt dyno notices anything once i get a new map sensor...so im glad this is over for now...

and whoever congratulated me on a job well done...we should probably just make it a job done...certain things didnt get done in the way i wouldve had them done...such as dad not being able to figure out how to get the torque wrench to do 89 in. lbs....so just tightening them with a nut driver and one hand...then barely touching them with a ratchet....its ghetto i know, but its holding together so far
Don't worry about the small stuff....99% of mechanics never pull out their torque wrenches. And stuff works great when you get it back. Heck...I didn't torque to spec anything on my SC last night...just gave it a "yup that'* right" torque. Congrats and yes...JOB WELL DONE!
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Old 07-09-2005, 10:49 AM   #14
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you may not need the map sensor itself, just the plastic housing if they sell it.
Very common item to crack during installation.
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Old 07-09-2005, 10:56 AM   #15
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well we took it on and off several times while messing with the PCV valve, and it was a bugger to get out each time, we had to use alot of force...and that force was guided by impatience brought on by "i want to get this effin thing running!!!" so on my last removal i actually ripped the thing in half.....whoopsie! so we just replaced the whole thing....a nice little 50 dollar whoopsie..or 45 something, i cant remember the exact price
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