Got my $300 supra running, misses with load, CEL 51 & 52

[darkandroid1234]

OK, car is an '87 N/A Auto, been sitting for a year with minimal, if any running and no driving. I bought it with a dead fuel pump as a "project" and just got my pump in yesterday.

I turn the key on and let the pump pressurize and after a few seconds I crank it and to my surprise it starts right away and idles ok but a little rough.
I let it sit and warm up for a minute and noticed the CEL was on. I gave it some gas and it has a pretty bad miss and blows bluish smoke under load, and will hardly move the car over 5 mph. I know the gas is OLD, the plugs, wires, cap, and rotor are shitty, and it has sat for a long time.

I checked the codes per TSRM and got a 51 and 52, I am not a tech/electrical genius, and I know some of y'all are. Can I get some pointers or advice as to what to do to solve these codes?

Thanks in advance,

-Mike

 

[DaSuprawolf]

51 is mostly minor, its to do with A/C and/or throtle position, but 52 sucks, its with the knock sensor, either the sensor it shot or the wiring is bad, im currently messing with 52 and 51 myself, 52 will retard timing and add fuel to make the engine run "safe" but still should run, just no performance. id reccomend doing the tune up first like you said, then see if it runs any better

see here for 51---read
http://www.supramania.com/forums/showthread.php?t=19482&highlight=code

good luck,-Brian

 

[darkandroid1234]

Thanks, will do the tune-up, then report.

 

[jetjock]

Just so you know turning the key on will not run the pump and pressurize the fuel system. The pump only runs when the key is turned to start. It does runs at high speed until the engine starts. That is unless it's been hacked to run at high speed all the time, a common and (mostly) uneeded mod that considerably reduces fuel pump life.

 

[darkandroid1234]

I guess it's just an old habit, since I am a ford guy as well. Thanks for the heads up.

 

[darkandroid1234]

Today I put some 93* in the tank and tried to start the car. It started but wouldn't rev without dying, after 2 more starts like this all it does is sputter, almost start and die out. It was starting up and running every time yesterday but now won't.

I am guessing that the sock on the new pump is clogged, anyone have a good method of cleaning out the tank? I heard about a method using a pressure washer then kerosene or compressed air to stop moisture, I don't have a pressure washer or air.

Plus on top of it all I *think* I am having the starter wiring problem that seems to happen to everyone at least once. I turn the key to "ON" and the dash lights all work, then start and they dim out and I hear a single click from the passenger side, and it doesn't crank.

 

[DaSuprawolf]

the starting problem would be a low battery, i'd guess.

 

[darkandroid1234]

Battery is new, just bought day before yesterday, and it tests fine too. I accidently pulled a black wire with a blueish stripe on it off the starter, it's ~12 gauge in width... gotta figure that out first, then to the other many issues.

 

[darkandroid1234]

Jacked it up, put it on stands and looked at where my fat ass self has to reach to get that wire back on(and 98% chance will end up needing a new starter), then abruptly walked away from the car and said fuck it. I need to get the car high enough to reach around in there and there is *NO* way I can reach from the top, I guess I got in over my head on this car because I have always wanted one. I'm starting to think after adding it all up that this thing needs too much to be a good project, my first thoughts were that it just needed a LOT of TLC and routine maintainence now the list gets longer every time I walk outside and find new ghetto ass rigging somewhere else.

Going to start a FS thread....:icon_mad:

 

[mcpcola]

wow that was giving up quick.

 

[darkandroid1234]

Well in the course of 2 days my situation has gotten 100% worse, this car was *supposed* to just need a fuel pump, now I see how much it needs, and i just cannot afford it. I just want to get a better supra with a 5-spd. I can't have long term projects here, and that's what this one is now that I made some discoveries that I could not make when it was parked in a dirt parking lot and the PO swore it had ben run the month before. I live in an apartment and they get on my ass for jacking it up, nevermind pulling a motor/trans./(insert major part here).

 

[1TuffSupra]

Dude take it a step at a time, you may not have the money to fix it right now, but what about in a month or two? My car had been sitting for like 3 yrs when I bought it. Just pull the plug out of the gas tank and let all the old gas out. Pull the tank and pressure wash it, then let it sit in the sun for a few hrs so it can dry. To be honest with you though, your going to be hard pressed to find another supra at 300bux. And even if you do have to put 500 into it to get it running right, you would still end up spending a lot less than what the car is worth. Take me for instance, my car has been down for about 5-6months now. I have my celica as a DD, so Im taking my time and buying parts slowly, but surely. So far Ive spent almost 2500 bux including the car. Since my insurance CO. is dead set on telling me my car is turbo its worth way way more.

Hell I live in an APT complex too and they like to tow cars away that have been sitting too long. There are cars that have been sitting out in the lot for less time than mine that they have towed. I think the only reason they havent even tried towing mine is because 1) they know I will definitely get my car fixed since they have seen me working on my cars before and 2) Its a f'ing supra, lol. I think everyone that worked in the office came to me and asked me what kind of car it is the first wk I brought it here. They all love it. Even when I have trouble with the car and end up on the side of the road I get 3-4 people pulling over to see if I need any help, thats never happened in any other car that Ive owned

So dont lose faith, if this is a car uve dreamed of owning keep it and hold off until u can afford to fix it.

 

[darkandroid1234]

I am not giving up on having a Supra, I found a Maroon one with a new 5-spd and clutch, lot's of new parts, nicer grey interior, and an awesome new feature.... ROD KNOCK

It's 500$ and putting another motor in a car which is already a 5-spd, is much nicer than having to probably do the same plus a manual swap for my auto... and paint... and interior work...

 

[1TuffSupra]

well as long as the motor in the car you have doesnt have the dreaded knock or a bhg I say buy that 5spd and swap the motor over. You could very well end up with a functioning car for about a grand. nice find :bigthumb:

And where the hell are you finding all these supras at such low prices, lol.

 

[kntmikado]

I once had an '89 Targa that wouldn't crank properly. Bought it for $400. Replaced the starter that had been burnt out and did some other little things on it. Couldn't find the time or resources to fix it quickly, so I sold it for just a little more than I'd put into it, a total of $800. Bought a Z. Wound up putting $2k into it between a new head gasket and a complete engine swap. That same $2k would have completely fixed every problem on the '89 with a hundred or two to spare. Just have patience and don't get too worked up. As a last resort, go check out the FS forums on here and on SF. I have yet to see a supra that isn't a rolling chassis, a POS or a BHG for less than $2k. The $2k you'd spend buying a "better" Supra will quite possibly fix a lot of the probems in your existing car, especially if you do the work yourself. As long as you keep current plates on the car, there shouldn't be much complaint from them unless you make a big mess and don't clean it up. My recommendation, if you can afford it, is to rent a storage unit or something that's large enough to hold the car and work on it there. Lots of people do that, actually.

Anyway, you can either put money into the car you've already got or you can put money into a different car that may have other problems to cost even more in repairs after you've bought it. My advice is to stick with what you've got, unless it's rusted out or something else.

 

[darkandroid1234]

well as long as the motor in the car you have doesnt have the dreaded knock or a bhg I say buy that 5spd and swap the motor over. You could very well end up with a functioning car for about a grand. nice find :bigthumb:

And where the hell are you finding all these supras at such low prices, lol.

I randomly walk up to the door of every house or buisiness of which has a Supra parked nearby, and ask about it. :naughty:

Without flaming me too much, can I get some details about pulling a 7mge? I searched and found NADA.

 

[1TuffSupra]

http://www.supramania.com/forums/showthread.php?t=423

I know it says for the GTE but the steps are virtually identical to pulling a GE.

 

[darkandroid1234]

Oh, I figured it'd be different, I found that, thanks for clearing it up. What diffrentiates (sp?) when removing a motor with an auto tranny attached to it? Can I just leave the trans in the car?

 

[1TuffSupra]

It would be the same, there might be some plugs that you would have to remove from the tranny though. Even still though, it would probably be easier to remove the tranny with the motor. If you think about it its easier to unbolt the ds than it is trying to reach for the bolts that attach the tranny to the motor

 

[supramacist]

I was taught that you pulled the entire unit. If it were myself..., I would pull the trans and all. It's going to be easier to set up and put back in. Instead of pulling the engine, inserting the engine and then reconnecting. IMO.

Just for the record...., I think routine maintenance for the stereotypical supra is to replace the Hg and everyother thing with moving parts. LOL..., It's really bustin my chops aswell. I fix the car it runs for 3/4 days..., breaks down for 3/4 weeks...., runs for 3/4 and breaks down again. I don't think I have managed to put 5k on it in the time I have owned it. And that hasn't been 6 months yet. I payed what I payed and I have out another 2k into it..., My dumb ass was hoping not to have to do what the next 1000$ is for, and that is to rebuild the top half of the engine.