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#1
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03 T&C performance issues...
I've done a full tuneup on it New plugs, wires, Coilpak and still suffer an extreme drag on the system... I'll Enclose the following readings taken as it was bogging down.
FuelSYS1 CL LOAD_PCT 15.7 ECT 92 (parked for a bit) SHRTFT1 % 4.7 LONGFT % 1.6 MAP (kPa) 87.0 RPM 1080 (Should be 1500's) VSS 55 KM/h Spark ADV 7.5 TP % 21.2 O2B1S1V 0.845 SHRTFB1S1 % -1.6 O2B1S2 0.825 (STEADY) SHRTFB1S2 % N/A OBDSUP Not OBT MIL_DIS (KM) 0 I'm at a loss to figure out whats going on... I've checked the intake for leaks, made sure the firing order was right. Cleaned the TB, Replace the TPS, CPS.... Could it be an O2 sensor? my secondary o2 sensor reads fairly steady while the front one, reads sluggishly as a changing variable. (never over 1v. and as low as .020x this is the Chrysler 3.8L engine
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
#2
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The map reading of 87 KPA is high, as in higher than my ambient air pressure in Denver 83KPA. I'd suspect either the map sensor is bad or possibly not (or poorly) connected to the manifold. Idling I'd expect a map reading around 30-50 KPA roughly. The O2(1) voltage of ~.8V indicates rich mixture, probably caused by the faulty MAP reading. Assuming the MAP reading is correct I'd suspect a plugged catalyst is killing the manifold vacuum and hence power.
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90 300TE 4-M Turbo 103, T3/T04E 50 trim T04B cover .60 AR Stage 3 turbine .63 AR A2W I/C, 40 LB/HR MS2E, 60-2 Direct Coil Control 3" Exh, AEM W/B O2 Underdrive Alt. and P/S Pulleys, Vented Rear Discs, .034 Booster. 3.07 diffs 1st Gear Start 90 300CE 104.980 Milled & ported head, 10.3:1 compression 197° intake cam w/20° advancer Tuned CIS ECU 4° ignition advance PCS TCM2000, built 722.6 600W networked suction fan Sportline sway bars V8 rear subframe, Quaife ATB 3.06 diff |
#3
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Thanks for the response, These are readings at idle from a diff day,
These are all at idle unless otherwise indicated MIL status off MIL status off Eng Speed Eng Speed Calc Load 5.5@ idle 11.4 @1700RPM MAP "hg 8.9 Coolant 221 Ign Advance 13.5-15.3 ST FTRML -1.6-3.1 LT FTRML -.6 Fuel system: Closed o2S11 ST FTRML % 2.3 o2S12 MILDIST 0 OBD STAT none
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
#4
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can I run this car withouth the MAP sensor connected?
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
#5
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yes you can, but it runs like hell.
some more readings... Fuel system goes from CL to OL-Drive. Also attached is a complete data set I recorded if you feel the urge to read. I've gone over the entire vac system. Pulled the MAP sensor (was wet, smelled of gas) checked the intake for leaks with a propane wand. there is nothing I can find in the vacuum system that explains this. I've pulled some more readings. some of the more interesting things is between 41-45MPH (my trouble area) the computer puts the car into OL-Drive. I've also gotten since messing with the MAP P0301 03 and the general misfire code. The following is the engine when the status goes from CL to OL-Drive DTC_CNT 0 FUELSYS1 OL-Drive FUELSYS2 -- LOAD% 8.6 ECT(*F) 195 SHRTFT1(%) -0.8 LONGFT(%) 0.8 MAP(psi)4.4 RPM 1425 VSS 44 SPARKADV (deg) 44 TP 12.5 o2b1s1 (v) 0.880 STFTb1s1 0.0 o2sb1s2 0.825 VS FS CL load 6.7 coolant 195 shrt trm trim 1 % 0.0 Long term trm 1 " 0.8 MAP 4.2PSI RPM 1197 VSS 43 SPARKADV 29Deg TP 12.5 o2S1b1 0.020 o2b1s2 0.020
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed Last edited by Aquaticedge; 02-28-2014 at 05:22 PM. |
#6
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Why is the MAP sensor wet?
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#7
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Good question. I dont know. the whole intake is wet inside, brown in colour and smells of gasoline. MAP on this particular car is on the very top of the IM.
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
#8
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bumpa...
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed |
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