I have no idea where is it. I got a chilton book and it sucks, it wasn't even woth buying it hasn't helped me out once. I was just wondering where it is, and how it can affect your car, I don't have a check engine light, my car gets bad gas milleage, it feels like a 6 cylinder, and just sounds bad, it also idles screwy sometimes one week it weill idle up high, and the next week it will idle way low and die on me.
Any help would be appreciated.
thanks guys

 

Well, If you have a TPI as I suspect, it should be on the passenger side of the TPI plenum, back by the distributor cover. Yes a bad MAP can make the car run bad though I have never had one of mine go bad. More details will help, i.e. what kinda of car, engine, mods, symptoms etc.

------------------
Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

 

I have a 89 350 formula, nothing really done to it, I looked at the map sensor, it is susposed to be covered with gunk? there is black seleant all around it, and crusty and hard.

 

if you have a 1989 engine then you DONT HAVE a MAP sensor, it only came on 90-92 cars.

------------------
Jarrad
1990 IROC-Z L98 350 TPI
TH-700R4
G92- 7.5" 10 Bolt 3.23gears
Bright Red Hardtop/ Grey Custom Interior
5,507 IROC's Coupes/Ttops; 2,415 5.7L IROC's Produced in 1990

DAILY DRIVER: 1991 S10 2.5L/5SPD WITH CAMARO RIMS

 

Rare-Roc-Z is right only 90-92 cars have a map,they are speed density. As far as i know Mass Air cars dont have them.

87 flame red T/A LB9 5spd.
3 in. flowmaster/TES
ripper/centerforce
ported tintake
every free mod

 

then what could be wrong with my car, it feels like a 6 cyl. I can't deal with that.

 

Check the basics and make sure that the plug wires are in the correct sequence. If you have done anything with the plugs.