The code doesn't tell you what to replace just that the computer thinks there is a problem on that system. Did you check sensor wiring circuits? Black wire should be ground--gray wire--ref voltage about 5 volts. The lite green wire signal to computer. The map sensor also needs vacuum.
Use a digital multimeter on signal wire, engine idling. What is the reading? Just for comparison, at idle the tps and map signals should be close to the same reading, won't be exact. If several volt difference that isn't right. In my opinion.
Run fault codes
could be faulty crank/cam position sensor , dirty injectors
Describe the noise .
I am going to put it on here by tomorrow, if I can.
I am going to try and put the video on here tomorrow if I can
Like its bogging down real bad.
A clogged vacuum line to the MAP sensor, low fuel pressure from clogged filter or restricted injectors, bad knock sensor causing timing retard .
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SOURCE: location of iat high input sensor
The iat (intake air temperature) is located on the air filter housing. If its reading high its probably unplugged
SOURCE: where is the iat sensor hight input located on a
look where the pipes go into the engine from the radiator usually the top on the sensor will have two wires not one
SOURCE: How to replace timing chain
Here ya go....
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c
SOURCE: how do i know if brake booster is gone ? 2001 gmc
Do you by any chance hear a hissing noise from under the dash? If so, yes, you have a bad booster. For it to do what you're saying, it would almost have to have a vacuum leak. However, if there is a problem with something in the ABS system, you should have an ABS warning light on. Also, ABS can make the pedal fade, but I've never heard of it making the pedal hard. Your diagnosis of a brake booster does sound likely, but I'll admit I can't be sure -- this is an odd one.
Testimonial: "thanks, heard a hissing that i thought was coming from under the truck -- have to check tomorrow - actually my father's truck. have to get back there"
SOURCE: 92 jeep wrangler 5 spd 4 cyl skipping and bogging
Replace the catalyst convertor. When a convertor goes bad, the guts of it break apart and end up clogging the exit port. One of its functions is to remove toxins from the air. Helps the emission system to run rich or lean gas exhaust.
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Did codes it said it was map
Sensor & replaced it same problem, replaced twice.
If it sounds like air sucking it may be a vacuum line to the MAP sensor which could trigger a false MAP code .
My hearing is no good. I'm not good with noises.
Me and you both brother along with my eyesight and memory :)
same here. lol
What does the noise sound like ?
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