Lots of codes...89 TII
12-06-09, 01:19 AM
#1
Lots of codes...89 TII
Ok so i have a 89 TII stock except for emissions removal and exhaust....well the other day the check engine light came on and then went back off after like 20 secs...its been doing this now for like 2 days...and seems to runs weird at wot at higher rpms....so i pulled the codes and here they are
11
13
17
25
30
31
32
33
42
i kno some of these are emissions related but not sure about all of them...and i have a exhaust leak before the o2 sensor could that cause some of them??
any help would be greatly appreciated!!
thanx
11
13
17
25
30
31
32
33
42
i kno some of these are emissions related but not sure about all of them...and i have a exhaust leak before the o2 sensor could that cause some of them??
any help would be greatly appreciated!!
thanx
12-06-09, 02:47 PM
#7
ya i kno the o2 is one wire but is the intake are temp one wire also? my car has been getting like 10 mpg.... also it hesitates real bad at high rpms in 3rd and almost wont even go to redline in 4th gear like its banging out....it has a full tune up
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12-06-09, 03:12 PM
#8
air temp sensor has two wires. Its the only sensor on the TB elbow.
Also that hesitation at high rpms is probably due to being rich which is caused by the bad Pressure sensor, and air temp sensor, since it also regulates how much gas goes into the engine.
Also that hesitation at high rpms is probably due to being rich which is caused by the bad Pressure sensor, and air temp sensor, since it also regulates how much gas goes into the engine.
12-06-09, 06:19 PM
#11
for the air sensor you would need something to heat up the sensor, a thermosensor to read the temperature of the heat from the heat source and of course a multimeter.
at 68F it should read 37,350 - 45,650 ohms
at 122F 10600 - 13,040 ohms
185F 3150-3859 ohms
as for the pressure sensor you need to disconnect the vacuum line and plug, apply 100mmhg or 3.9inhg to the sensor, turn ignition switch on, and read the voltage from pin D
it should be 1.9-2.1 voltage at 100mmhg
The restrictor pill is for smoothing out the incoming air so the sensor wont be reading the wrong amount, and then sends it to the ecu.
Not having it might be the problem you have because the voltage will fluctuates.
at 68F it should read 37,350 - 45,650 ohms
at 122F 10600 - 13,040 ohms
185F 3150-3859 ohms
as for the pressure sensor you need to disconnect the vacuum line and plug, apply 100mmhg or 3.9inhg to the sensor, turn ignition switch on, and read the voltage from pin D
it should be 1.9-2.1 voltage at 100mmhg
The restrictor pill is for smoothing out the incoming air so the sensor wont be reading the wrong amount, and then sends it to the ecu.
Not having it might be the problem you have because the voltage will fluctuates.
12-14-09, 02:32 AM
#17
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check your ecu ground under the intercooler on the top of the engine block. then again i'm thinking the lack of the restrictor pill going to the pressure sensor may be the cause of the misfiring and running rich, now I know on my own turbo II I need to go back and install that!
12-15-09, 09:33 PM
#18
installed the pill and cleaned up and put extra grounds and reset the ecu and let it run for like 20 min just idle mostly and some revs but no driving and then i rechecked the codes and didnt get the ait or pressure sensor code...do you have to put the car under load for these to show up or have i maybe fixed my problem?
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