PT Cruiser Forum

PT Cruiser Forum (http://www.ptcruiserlinks.com/forum/)
-   PT Cruiser News and Rumors (http://www.ptcruiserlinks.com/forum/pt-cruiser-news-rumors/)
-   -   P2074 CHRYSLER Manifold Pressure (http://www.ptcruiserlinks.com/forum/pt-cruiser-news-rumors/63726-p2074-chrysler-manifold-pressure.html)

partyd 03 Jun 2017 11:48 am

P2074 CHRYSLER Manifold Pressure
 
2006 pt cruiser base, we did the head and timing belt last year
Now is having a problem and I can find the solution, I need help!!
car sounds horrible and idles bad 500 to 1500 rpm's jumping up and down all the time if I drive it runs ok but don't have too much power

a new manifold pressure sensor, pvc valve, vacuum connector from the brake booster was installed still the same problem
I replaced the intake and throttle body from the junkyard, still same problem

I can't find the leak, what else can I check?
thank you

ptcruisersteve 03 Jun 2017 12:04 pm

Re: P2074 CHRYSLER Manifold Pressure
 
Quote:

Originally Posted by partyd (Post 582281)
ptcruisersteve I repair the TIPM, it was a bad capacitor and a few bad solder spots, also a little bit of water. I will upload the pictures later now i need a shower thank you for your help :D

I am posting a post that you posted a while back. I would appreciate if you would post the pictures. Thanks

rckstein 03 Jun 2017 12:15 pm

Re: P2074 CHRYSLER Manifold Pressure
 
Do you have a base model or GT?

You had a previous thread from last year that you were looking for a PCM for a GT:

http://www.ptcruiserlinks.com/forum/...r-2006-gt.html

Did you ever replace the PCM? You can get a remanufactured one on Ebay if you still need one.

ptcruisersteve 03 Jun 2017 12:22 pm

Re: P2074 CHRYSLER Manifold Pressure
 
P0274 = Manifold Pressure / Throttle Position Correlation; High Flow & Vacuum Leak

Possible Causes:

1. Vacuum leak in hoses or component connections
2. High resistance or resistance to ground in MAP 5 volt supply or signal circuit
3. MAP Sensor has failed
4. High resistance in MAP ground circuit
5. Throttle Position Sensor has failed or is improperly adjusted
6. High resistance or resistance to ground in Throttle Position Sensor 5 volt supply or signal circuit
7. High resistance in Throttle Position Sensor ground circuit
8. PCM has failed

Check all the hoses.

1. Inspect the Intake Manifold for leaks and cracks.
2. Inspect the Power Brake Booster for any vacuum leaks.
3. Inspect the PCV system for proper operation or any vacuum leaks.
4. Check all hoses on the turbo.

partyd 03 Jun 2017 12:23 pm

Re: P2074 CHRYSLER Manifold Pressure
 
base pt cruiser.

partyd 03 Jun 2017 12:25 pm

Re: P2074 CHRYSLER Manifold Pressure
 
Quote:

Originally Posted by ptcruisersteve (Post 655936)
I am posting a post that you posted a while back. I would appreciate if you would post the pictures. Thanks

I have to look for my old phone, I have an extra TIPM if you need one

partyd 03 Jun 2017 12:27 pm

Re: P2074 CHRYSLER Manifold Pressure
 
Quote:

Originally Posted by rckstein (Post 655939)
Do you have a base model or GT?

You had a previous thread from last year that you were looking for a PCM for a GT:

http://www.ptcruiserlinks.com/forum/...r-2006-gt.html

Did you ever replace the PCM? You can get a remanufactured one on Ebay if you still need one.

Different vehicle, still looking for a computer, they are not available anywhere

ptcruisersteve 03 Jun 2017 12:34 pm

Re: P2074 CHRYSLER Manifold Pressure
 
Quote:

Originally Posted by partyd (Post 655942)
I have to look for my old phone, I have an extra TIPM if you need one

That would be great! I will pay for shipping, etc. Thanks

Sending PM :)

partyd 04 Jun 2017 09:02 am

Re: P2074 CHRYSLER Manifold Pressure
 
Quote:

Originally Posted by ptcruisersteve (Post 655940)
P0274 = Manifold Pressure / Throttle Position Correlation; High Flow & Vacuum Leak

Possible Causes:

1. Vacuum leak in hoses or component connections
2. High resistance or resistance to ground in MAP 5 volt supply or signal circuit
3. MAP Sensor has failed
4. High resistance in MAP ground circuit
5. Throttle Position Sensor has failed or is improperly adjusted
6. High resistance or resistance to ground in Throttle Position Sensor 5 volt supply or signal circuit
7. High resistance in Throttle Position Sensor ground circuit
8. PCM has failed

Check all the hoses.

1. Inspect the Intake Manifold for leaks and cracks.
2. Inspect the Power Brake Booster for any vacuum leaks.
3. Inspect the PCV system for proper operation or any vacuum leaks.
4. Check all hoses on the turbo.

I spend all day checking everything, all the hoses are good, I replace one and use clamps for all of them
Almost everything was replaced, Throttle body with sensor and plastic intake map sensor, cam sensor, I took all the engine mounts to see the timing belt
and it's almost perfect, the intake cam is move half of a tooth but if I fix it, it will be half of a tooth the other way, I have done about 6 timing belts and sometimes they are not perfect, once In a different vehicle I was 1 tooth out and it run perfectly, I know timing belt is not the problem.
this car drives ok, but it's weak and it idles bad, my next option is the computer but I have to replace it without been 100% sure that the problem is there, i need to find a way to test it

ptcruisersteve 04 Jun 2017 10:35 am

Re: P2074 CHRYSLER Manifold Pressure
 
I would suggest using a vacuum gauge for reading, if the belt is off a tooth it will reflect in either a very high idle HG or very low. An engine that is in good condition will idle between 16-18 steady on most 2.4 engines. Post what you find.


All times are GMT -5. The time now is 12:03 am.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243