New: 3 coil packs, 6 injectors , iac, iat, map, maf, tsp, crank position sensor and reluctor wheels, cam position sensor, 6 spark plugs , wires, smoke tested no leaks found. FUEL PRESSURE 45 psi at koeo. 38 psi at 3000 rpms. Coolant temp at start up 70F, Intake air temp 71F, ambient temp 73F. goes too closed loop temp at 170F.
ASE class day one , or 100 years of otto cycle engines and every book on them, for 100 year told you....
Engine, spark and fuel last
a hyjacked post and answered endless times. same.
COMPRESSION OR LEAK DOWN TEST
AND STOP THROWING PARTS AND GOING BROKE.
ALSO SEE IF VVT IS HERE and stuck.
NO CAR VIN POSTED AT ALL
STEP 1 IS TEST THE ENGINE
ALL THE FUEL IN THE WORLD OR ENDLESS SPARK CAN RUN ANY DEAD ENGINE ,WEAK SURE
DEAD NOT.! cam belts fail even chains over 250k miles and engine that overheat warp heads. and head gasket is only first clue, of deeper problem.s./
150psi on all 6 cylinders tested WOT cranked.
open the throttle and let the gauge peak
and all 6 read near the same, some HIgh CR engines do 200Psi easy and I will not look up your engine.
sea level if in Denver say so., it;s less (physics)
if engine is interference engine we put the keys away, and check cam timing first, and not make it worse cranking it and bending valves to H3LL or worse.
not saying it is.interference, but seems NOT.
12 gm engines are. my list is not complete so...12.
glad you did not buy a new rear bumper.
the engine must pump air and have good compression
not 100PSI like my trash 3HP lawn mower has.
or my 1970 bug had.
I have a 2000 bird code of multiple misfire and I did what u did waisted all that money with sensors come down to leaking head gasket .put a new one on tip top running now .
Engine compression .
SOURCE: cylinder 3 misfire
Make sure you're using the recommended spark plugs. When my car did that, I had put Bosch Platinum Plus-4 plugs in and got that same problem. Turns out the plugs are too hot and cause it to fire prematurely and kick the misfire code.
SOURCE: service engine soon light keeps coming on. Now low coolant light
I would start by doing an oil change myself so you can examine the oil and look for water/antifreeze in it. You will be able to see it separate from the oil and you can smell the antifreeze. If there is then you have a leak between the water jacket and the heads somewhere. More than likely the LOWER intake gasket is leaking into the head. You said they replaced a gasket but was it the UPPER or LOWER? If it was the LOWER did they use RTV in the correct areas? Did they torque the intake bolts to the correct pressure and install the bolts correctly? I know you don't have these answers but these could all be part of the problem. It may be leaking more at #2 cylinder and causing it to foul more than the others. Also just because a mech pressurized the coolant system and didnt see any change in pressure (hopefully he wasn't just looking for visible leaks) the issue may not happen until the engine is hot, as metals behave differently when heated, especially aluminum which the LOWER intake is made. Have a mechanic or mechanically inclined friend (gearhead) remove the #2 plug wire, then kick the engine a few times without starting it, enough to let any fluid get into the chamber, this would include gas btw. Then remove the plug and look for any wet residue on the plug, gas will evap. quickly, antifreeze/oil won't. again try to smell the residue and if necessary, lightly touch some to your tongue, antifreeze has a sugary sweet taste that is easily detectable. Remember any time you are working with chemicals such as waste oil and especially anti freeze, minimize spills and clean them up quickly and completely and place the spent fluid in a sealable container and take them to a collection center for disposal. Waste oil is a carcinagin (cancer causing) agent and antifreeze (glycol) new or old will kill any animal (child, dog, cat,etc) that ingests it. Many auto parts stores and some other retailers that sell oil and antifreeze will take your wastes if you bought the replacement fluid from them, check before you buy.
SOURCE: 2001 Firebird 3.8 misfires
Check your alternator see if you have a drop in voltage on your tack,then it is the problem.I too was a victim of high price tune up and still had a problem with a misfire.and cover your coil pack with a piece of rubber water run of onto your power pack .Another thing is to use a silicone spray on all wires.
SOURCE: 1999 pontiac grand prix gtp won't start
well from what it sounds like is that it is your fuel injectors try going to a full service garage and have them clean the fuel injectors if you cant get it there go to auto zone and pick up a can of sea foam and do it your self thru a vacum line such as the brake booster there is a vacum line that comes out of that and goes straight to your cylinder that will help you there its recomended once a year or every 15000 miles good luck hope it works for you
OBDII DTC
P1001 Key on engine running unable to complete; key on engine running aborted
P1100 Mass air flow sensor intermittent
P1101 Mass air flow sensor out of self test range
P1104 Mass Airflow (MAF) Sensor Ground Circuit Malfunction
P1107 Left MAP Sensor Circuit
P1108 Right MAP Sensor Circuit
P1112 IATS Circuit High Voltage
P1113 IATS Circuit Low Voltage
P1121 Pedal Position Sensor Circuit A Range/Performance
P1122 Pedal Position Sensor Circuit A Low Voltage
P1123 Pedal Position Sensor Circuit A High Voltage
P1137 No Rear HO2S Response
P1138 No Rear HO3S Response
P1157 No Rear HO2S Response
P1158 No Rear HO3S Response
P1171 All Cylinders Too Lean
P1172 All Cylinders Too Rich
P1176 Adaptive Fuel Metering Trim Too Lean
P1177 Adaptive Fuel Metering Trim Too Rich
P1178 Adaptive Fuel Metering Trim Too Lean
P1179 Adaptive Fuel Metering Trim Too Rich
P1187 Both Front HO2S Heater Circuits (High Resistance)
P1188 Both Front HO2S Heater Circuits (Open Short to Ground High Resistance)
P1190 Both Front HO2S Heater Circuits (High Battery Voltage Short to Voltage)
P1193 Both Front HO2S Heater Circuits (High Resistance MAF Sensor Fault)
P1194 Both Front HO2S Heater Circuits (Open Short to Ground High Resistance)
P1196 Both Front HO2S Heater Circuits (High Battery Voltage Short to Ground)
P1198 Fuel Level Sensor (High Voltage)
P1199 Fuel Level Sensor (Low Voltage)
P1201 No. 1 Fuel Injector
P1202 No. 2 Fuel Injector
P1203 No. 3 Fuel Injector
P1204 No. 4 Fuel Injector
P1205 No. 5 Fuel Injector
P1206 No. 6 Fuel Injector
P1221 Pedal Position Sensor Circuit B Range/Performance
P1222 Pedal Position Sensor Circuit B Low Voltage
P1223 Pedal Position Sensor Circuit B High Voltage
P1224 Electronic Throttle Control Position Error
P1226 Mechanical Guard Circuit Range Performance
P1227 Mechanical Guard Circuit Low Input
P1228 Mechanical Guard Circuit High Input
P1229 Throttle Control Circuit Malfunction
P1230 Fuel Pump Relay Malfunction
P1235 VSV 1 Circuit Range/Performance
P1236 VSV 1 Vacuum Circuit Failure
P1237 VSV 2 Atmosphere Circuit Failure
P1238 VSV 3 Release Circuit Failure
P1240 Throttle Position Sensor Voltage Malfunction//Sensor Reference Voltage Low (Throttle
Fuel Tank Pressure)
P1241 Throttle Position Sensor Voltage Low Input//Reference Voltage Low (Throttle Fuel
Tank Pressure)
P1242 Throttle Position Sensor Voltage High Input
P1243 Throttle Position Sensor Ground Malfunction
P1245 Crank Signal Low Input
P1246 Crank Signal High Input
P1313 Misfire Catalyst Damage Bank No. 1
P1314 Misfire Catalyst Damage Bank No. 2
P1315 Misfire Excess Emissions
P1316 Misfire Rate Above Limit
P1335 Crankshaft Position Sensor Circuit
P1336 Camshaft Position Sensor (CMP) Circuit Performance
P1361 Ignition Coil Primary Circuit (Cylinder No. 1)
P1362 Ignition Coil Primary Circuit (Cylinder No. 2)
P1363 Ignition Coil Primary Circuit (Cylinder No. 3)
P1364 Ignition Coil Primary Circuit (Cylinder No. 4)
P1365 Ignition Coil Primary Circuit (Cylinder No. 5)
P1366 Ignition Coil Primary Circuit (Cylinder No. 6)
P1367 Ignition Monitor (Bank A)//Ignition System Failure Group 1
P1368 Ignition Monitor (Bank B)//Ignition System Failure Group 2
P1371 Early Activation Ignition Coil (Cylinder No. 1)
P1372 Early Activation Ignition Coil (Cylinder No. 2)
P1373 Early Activation Ignition Coil (Cylinder No. 3)
P1374 Early Activation Ignition Coil (Cylinder No. 4)
P1375 Early Activation Ignition Coil (Cylinder No. 5)
P1376 Early Activation Ignition Coil (Cylinder No. 6)
P1392 Variable Valve Timing Solenoid A Low Input
P1393 Variable Valve Timing Solenoid A High Input
P1396 Variable Valve Timing Solenoid B Malfunction
P1397 Variable Valve Timing Solenoid B Low Input
P1398 Variable Valve Timing Solenoid B High Input
P1400 EGR Valve Position Circuit (Valve Sticking Open or Short)
P1401 EGR Valve Position Circuit (Open Short to Ground)
P1408 EGR Temperature Sensor Circuit
P1409 EGR Valve Circuit
P1440 EVAP Purge Valve Open
P1441 EVAP Valve Circuit
P1443 EVAP Valve Circuit
P1447 EVAP Valve Circuit
P1448 EVAP Valve Circuit
P1454 EVAP System
P1474 Charge Air Coolant Pump Relay
P1475 Radiator Fans Slow Malfunction
P1476 Radiator Fans Fast Parallel Circuit Malfunction
P1506 Idle Speed Control Circuit (Low RPM; Bank B)
P1507 Idle Speed Control Circuit (High RPM; Bank B)
P1508 Idle Speed Control Circuit
P1509 Idle Speed Control Circuit
P1512 Throttle Position Sensor Idle Switch Sense Circuit
P1513 Throttle Position Sensor Idle Switch Sense Circuit
P1514 Park/Neutral Position Switch High Load Neutral/Drive
P1516 Gear Change Park/Neutral Malfunction
P1517 Engine Cranking Park/Neutral Malfunction
P1607 MIL Output Circuit
P1608 Automatic Transmission
P1609 Internal ECM Error
P1641 Fuel Pump Relay No. 1
P1646 Fuel Pump Relay No. 2
P1739 Automatic Transmission
P1775 Transmission Control Module MIL Circuit
P1776 Torque Reduction Request Signal
P1777 Torque Reduction Circuit
P1780 Automatic Transmission
P1781 Automatic Transmission
P1782 Automatic Transmission
P1783 Automatic Transmission
P1785 Automatic Transmission
P1790 Automatic Transmission
P1791 Automatic Transmission
P1792 Automatic Transmission
P1794 Automatic Transmission
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