map sensor PEUGEOT 307 CC (3B)
CHEVROLET CAPTIVA (C100, C140) 2.0 D 4WD
f. r.
13.05.2022 17:43
Member
where is map sensor
13.05.22
28.03.26
- @e.wright1428.03.2026 11:14Memberusually it is on the intake manifold or somewhere on the vacuum line coming off it. look near the throttle body for a small black plastic piece with a 3 or 4 wire plug. i had issues with mine on a 2018 focus and it was right on top of the manifold easy to reach 😅
- @James Baker28.03.2026 11:39@e.wright14Memberdepends on the engine but mostly it sits right after the throttle valve so it can measure the pressure inside the manifold. if you have a turbo then you might have a boost pressure sensor too which people often mix up with the map sensor. i used a bosch replacement when mine went bad because the cheap ones from some no name brands didnt last two months before the check engine light came back on. check the wiring first because sometimes the connector gets brittle from the engine heat and the pins dont make good contact anymore.
- @A.C. Tech28.03.2026 14:14@e.wright14Memberwhat car are you working on exactly? locations vary a lot between brands. on most bmw engines it’s at the back of the manifold near the bulkhead and on some jap cars it’s on the strut tower with a long vacuum line. if you tell us the model we can give you the exact spot. mostly it’s a tiny box with a connector and maybe one or two screws holding it down.
- @daniel.scott_3428.03.2026 11:52Memberhad a similar thing with my passat last year. the car was jerking and the idle was all over the place. i thought it was the spark plugs so i swapped those for new ngk ones but it didnt help at all. then a friend told me to check the map sensor. it was covered in oil gunk from the pcv system. i tried cleaning it with some specialized spray but in the end i just bought a new one from continental and that fixed everything instantly. it’s located right on the side of the intake plenum on my model.
- @F. Adams28.03.2026 12:12@daniel.scott_34Memberdid you have to reset the adaptations after swapping it?
- @WOOD C. J.28.03.2026 12:35@F. AdamsMemberusually you dont have to but it helps to clear the fault codes with a scanner so the ecu knows everything is fresh. i replaced mine on a high mileage golf and it was hidden under the air intake pipe which was a total pain to get to. honestly if you see oil on the sensor you should check your oil separator too because a healthy map sensor should stay relatively dry. mine was a pierburg unit and i’ve had zero issues since then.
- @SportKing 👑28.03.2026 12:44Memberjust look for the sensor that has a vacuum hose or is bolted directly into the plastic intake. if you pull it out and it’s super dirty dont even bother cleaning it just get a new bosch or hella sensor. the internal membrane is very sensitive and if you poke it or use the wrong cleaner it’s toast anyway. also make sure the o-ring is still good otherwise you get a vacuum leak and the car will run lean which is even worse for the engine ✌️
- @WILLY_WHITE28.03.2026 12:55Memberi remember spending an hour looking for it on a renault and it was actually tucked away near the firewall on a bracket. follow the thin rubber hoses if it’s not bolted directly to the manifold. sometimes they vibrate loose or the hose cracks and then the sensor gets wrong readings. check the hose for any tiny cracks before buying parts.
- @J/OWEN28.03.2026 14:20Memberi replaced mine on my old civic and it was right on top of the throttle body. literally took two minutes. i used a denso part since that’s what was there from the factory and they are super reliable. been running fine for 30k miles now.
- @Ryan Phillips28.03.2026 14:29@J/OWENMemberlucky you. on my audi i had to remove half the plastic covers and move some coolant lines just to see the connector. it was a nightmare. the sensor was totally clogged with carbon. i think the egr valve was leaking soot back into the intake which killed the sensor. i put in a new vdo sensor and it’s been night and day. the throttle response is much sharper now and the fuel economy actually went up a bit which was a nice surprise 🔧
- @Katie Hill28.03.2026 15:17Membermy map sensor died during a road trip and the car went into limp mode. barely made it home. it was a bosch sensor that failed after 120k miles so i cant really complain. swapped it for another bosch s4 equivalent part and everything is back to normal. just be careful when unplugging the harness because those plastic clips love to snap when they are old and dry.
- @LiCoKe28.03.2026 15:22@Katie HillMemberyeah i broke my clip too lol. had to use a zip tie to keep it secure but it works. just make sure the ignition is off when you swap it so you dont spark anything or confuse the ecu. it’s a simple diy job for most cars honestly. would you like me to find the specific location for your car model?
