shredhage

hey all.. i just bought a 90 toy pickup w the 3.0..306xxx mi.. auto

i drove it yesterday for a while drove great..
bought it today and drove it home.. over an hour..
truck ran great.. it had a slight stumble.. not under load or decelleration.. but when i was cruising on a flat road, truck at steady rpms.. it felt like a miss..
i just figured it meeded a tune up..

got home parked the truck and went inside.. came back out an hour later and it fired right up.. drove to the store. and it fired right up for the ride home..
i pulled the smashed stereo out and replaced the fuse..
messed around for a min and i jumped in to move the truck into the driveway and get a no start condition..
checked spark seems good..
cracked the cold air injection and cranked the engine.. plenty of fuel..
i pulled codes
12.. if i read this right would be the crank possition sensor.. this can cause a no start if i recall correctly? can anyone verify?
22. ect sensor circuit???? can someone help me w this code?
52.knock sensor circuit.. pretty self explanitory.. but this one shouldnt cause a non start codition.. right?

any help is very welcomed.. i cant tell you how stupid i feel just buyin a truck i cant drive.. ; )

i am new to these toyotas but am pretty efficient w jeeps and fords..


thanks for the help..

shredhage

i found the knock sensor to be unplugged.. plugged it back in..
cant re check codes to see if they are the same cuz it wont run to cycle the system..

shredhage

help...please...

shredhage

ok so heres what ive got soo far.
consistent 90 lbs of pressure compression test.. raw fuel smell from exhaust while cranking and i checke the resistances for the distruibuter an the coil.. all ae within hayes manual specs..
the efi relay seems to be working propperly and i have tested it w my multi meter.. all with in specks..

i think i need a timing light.. ?? jumped time?
seems probable to me..


any other sugestions?
c'mon guys yota tech??
i need some tech ; )

DeathCougar

iTrader: (23)

How did you plug the knock sensor in? It goes down under the intake. Did you pop your intake apart?

shredhage

no.. mine is run around the front of the engine threw the plastic chase.. runs down by the drivers side exh manifold and thats where the plug sits.. i just plugged em back together..

shredhage

ok i guess i just assumed it was the knock sensor.. im goi through my haynes now..

shredhage

i keep reading this and wondering about the crank possition sensor.. ???

12 Engine Speed (RPM) sensor Distributor or circuit, ignitor or
circuit circuit, starter or circuit, ECU
(non-turbo models); crankshaft
or position sensor / circuit, starter
or circuit, ECU (turbo models)

jtruck79

got spark fuel and compression . ur good the ect is engine coolant temp sensor. most likely faulted to -34 degrees. not sure where location is on 3.0l but u can unplug it will then fault to +180 degrees. hold foot on floor for flooded restart.

shredhage

tried the foot to the flooded idea.. it is an efi truck.. sooo..

no dice.. i found a broken wire on the cts fixed that.. not even sure its the right cts actually.. looks like the pigtail was spliced in and is different colors wiring..


im open for anything.. ; )

shredhage

ok i advanced the timing and tried to start.. still just spins.. retarded it and still the same..
im going to pull the timing belt cover off and see what i can get...
any other idea?

shredhage

looks like im talkin to myself.. lol
so i pulled the timing cover and ligned the crank pulley up at 0* and the cam pullys are lined up straight up and even w eachother.. i didnt jump time did i?

this is pissin me off..
could use some more help..

shane

shredhage

ok soo upon further investigation i could see the timing mark was at 10* advanced when the cam marks were lined up...
so i pulled it apart and did the water pump and the timing belt as well as just cleaning all the built up p.s. fluid due to leakin pump..
got the timing belt all dialed in and thought i would start it.. it kicked and sputtered so i quickly shut it off thinking i had fixed the problem.(the kick and sputter was more than it had done since i parked it..)
so i got the majority of the parts back on and decided to start it again.. no fire yes i have the tensioner tight.. yes i rotated the engine two full rotations by hand.. yes this is pissin me off..
the timing mark now looks like its at 5 * advanced now.. but it should run right?
especially at 5 *
i'll rip it back apart and get it dead on.. it may be as close as its gonna get due to tooth spacing... any one have any advice?
any suggestions..
im glad i did the belt and the w.p. eases my mind.. problem is im same place as i started..
not starting.....

NYChopshop

not to leave you hanging or anything, I just don't know exactly what to tell ya on the subject... check the simple stuff like the fittings of the plug wires and the engine ground... Sounds electrical. Were those wires shredded or burnt? you givem the sniff test? Pics would help a lot too! Good luck...

shredhage

i am sorry i thought i clarified this.. it wast the knock sensor wire.. i actually dont even know what it is.. it was just unplugged from its male counterpart..
the cts thing is that someone had cut and spliced a new pigtail on.. they only used tape so i used butt splices and silicone to fix..
i have good sprk and fuel. pressure at the rail... the timing belt was off by two teeth anyways..
ive checked the resistances on the dizzy and the coil..


crap..

NYChopshop

well, if the timing were off it would have run awfully before it kicked off on you... and it will rotate freely so there isnt any super major internal catastrophic damage I can point to... Electrical gremlins are our biggest enemy, honestly. I would check the wiring especially since you have spiced wires all over your engine... There's no telling how dumb the last owner was. I found that lesson out the hard way.

shredhage

bump and update..
got the timing belt back on and now am satisfied that the timing is dead on..
it started for about 5 min and i ran it untill it warmed up..
killed it and started to put all the belts back on..
got all finished up and dwent to start... no fire..

i will see if there are more codes since i was able to start it and post them up..
all of the wiring looks great.. the only splice is the cts..

shredhage

ok. i guess i had it running long enough to gather codes.. code 22.. cts is comming up.
i fixed the wiring. could the cts caus a no start condition?

shredhage

bump....