That's blows man. I really hope you find those puppies. Also be carefull with the bleeps.. If a Moderator reads material like that, he'll give you a warning. It's happened to me. Just a heads up bro.

 

Thanks for the heads up man.

 

Anytime.

 

any updates? im still having the same problem with my car, I better adjusted the timing and it was right on. Started up perfect. but when i went to rev it same problem, you can hear a sucking noise coming from the throttle body but then the car just dies and if it stays running theres no power or no throttle response at all. I have 42psi when the cars running. Is that too much? Im thinking it could be injectors because i cant think of anything else. I was just waiting to see what the injectors did to your car

 

Sorry bro I wish I had an update for you but the keys have gone rambo on me. When I find em and I get the injectors in I will let you guys know ASAP.

 

Still cant find your keys? Wow. They just didnt go Rambo on you, the case has turned into Mission Impossible. I hopes you find them.

 

My theory is that Rambo stole them and killed 50 men with them then he ran into chuck Norris which as we all know, destroyed rambo because nobody can beat chuck Norris (one exception). When chuck norris got owned by bruce lee, bruce stole his keys and sold them on the black market. The keys were then shipped to hill valley where doc brown took them back in time to the birth of jesus (apparently doc brown was one of the wise men) where he then gave them to jesus as a present after jesus was crucified he used his power to warp them back to my house... where they lie hidden.

On another note after not being able to find my keys I have taken upon myself
the task of cleaning my WHOLE house to find them....I have made 4 trips to the dump with useless crap now.

 

. WWWOOOOOWWWW. I thought it was time to fix the fuel system, not summertime house clean up.Before you know it, your car will be gone. I can see it already, "Dude, Where's My Car." Man Im so sorry that you cant find your keys man. this thread has turned into a movie theme thread. It's got me .

 

Lol...well at least crap is getting done. Fuel system will be replaced the day I find the keys.

 

CHECK SOMETHING CHEAPER FIRST. TP SENSOR IS BAD. WHEN U HIT THE THROTTLE THE SENSOR ISNT SENDING THE SIGNAL TO THE COMPUTER, SO IT DOESNT KNOW THAT MORE AIR IS ENTERING UR ENGINE. THEREFORE IT WONT ADD MORE FUEL. WHICH LEANS OUT THE MIXTURE.

 

I already bought the injectors but if the problem persists I will replace it.

 

You dont know that the sensor is bad. I had the same issue. When I purchased my Bosch III's, my issue went away. Also to comment on your comment, the ECM is getting a signal, it's just not at the proper resistance/setting. There is a small section within the coil inside the TPS that is faulty which gives the ECM a range of faulty voltage that is within a average range of 5 volts. Also the TPS has nothing to do with telling the ECM how much air is entering the engine, thats the job of the MAF Sensor. Turn off the CAPS too.

massaku, be very careful with keyboard auto mechanics.

 

Lol Thanks for the heads up bro but since I am trying to give my sister the most reliable engine I possibly can I would probably just replace it anyways.

 

Gift for your sister, you such a good brother. Cool points to you bro.

 

so , a bad TPS OR IAC could cause hesitation and bad throttle response? my car runs fine at idle, until you accelerate it jusst dies

 

Yes. The TPS just tells the ECM how much the throttle plates are open. As for the IAC valve, Maby. All that it does is once you let go of the gas, it'll help maintain the air intake so that the engine can stay on. One sign of the IAC going back is when your driving and you let go of the gas, it would die immidiately because it is not providing the engine with enough air to maintain the idle. Another sign is when you jump the pins A&B at the ALDL port (with the ignition "on") and you hear a loud continuous clicking that radiates from the throttlebody area, that means that the IAC's pintle (plunger that stops air flow into TB) is not stopping and is jumping the little gear mechanism within the housing.

 

see, with my car it runs fine at idle then whenn i give it gas it has no power it just dies outt

 

I had a similar problem in my 91 LB9 last year. Except it was a bit worse, it would run OK when cold but once the injectors started getting warm the engine would bog at a certain RPM and as it stayed running the RPMs where the bogging occurred kept falling and falling to the point the engine wouldn't run and would refuse to restart for at least a day. Wow can you say run-on sentence? And it was hard to start like in your video. Turns out the injectors were sour and all needed to get replaced. I've put about 4000 miles on it since then with 0 problems.

 

the 86 did that. ended up being the computer.

 

... I think its time for a vats bypass and a new key cylinder...

 

Still no keys bro?

 

Nope...thinkin they are gone forever.

 

I think my problem is also computer related. When i did my TPI conversion i used an 88 harness and 88 sensors with an 89 computer and PROM. Something tells me this is a problem so i am trying to get my hands on an 88 PROM. The computer is the same, correct?

 

88 MemCal. The PROM is the little chip that stores the spark tables and such while the MemCal is the whole thing that inserts into the ECM. You have a TPI setup right? well I can help you find a 88 TPI BIN and I can talk to a TGO buddy to see if he can do the programing for you. All that you would have to do is buy a Moates board for TPI for $35 plus shipping (First Class P.O. around $5 and UPS for around $11) and set up a price with my buddy. What happens is that the new EPROM will stand in for the old MemCal PROM chip while still maintaining "LIMP MODE." Lets take this to a P.M.. I dont want to hijack the thread.

 

Vust out the drill and start drilling, unless theres another way to remove the key cylinder.

 

quick question here, are the TPS in 1987,1988, and 1989 all the same? how about IAC

 

TPS = 1985 - 1989
IAC = 1985 - 1989

1. IAC Valve http://www.summitracing.com/parts/SM...RO&prefilter=1

I think the TPS was slightly different for 1990 - 1992. They look the same on other vendor websites but they dont interchange between the later or earlier years.

I think the IAC valve does work between 85-92 TPI systems. All the other websites claim this and that on their application sheets. Y do u ask if they are the same?

 

i am a new member and am having same problem. I have a 90 T/A with 5.0 TPI motor and car bogs and hesitates on low end. Fuel pressure is all over the place but when it idles it stays at about 26lbs when running. I have replaced fuel pump 2x along with sending unit, new filter, tune up, cat, fully adjustable pressure reg, and checked TPS and nothing so far has worked. Don't Know why fuel pressure so low but car just runs like crap. Any ideas as to what to check next?

 

Your pressure while the car is running is far too low. It should be around 40 LB (IIRC). search the forums for the proper pressure. Use the search tab on the upper right of the screen. It may be that the pressure is so low that the injectors are not spraying the fuel correctly. Instead of getting a fogging effect (atomization), your probably getting a heavier spray.

 

Alright I found my KEYS!... charging the battery and I will get the injectors in this week!

 

Go make yourself a copy... or 4. lol

 

HHHHEEEEEEYYYYYYYY. Where were they at? In your pocket. Hey man, good for you.

 

I bet they were in the ignition... .... ...

 

O' no. I know you didnt go there.

 

massaku, just fun and games bro, just fun and games.

 

Lol...actually they were in my pocket...just one that I haven't used in a long time. I replaced my ignition cylinder so its a little too late to make copies...but it did make bypassing vats a lot easier...

 

HA, what a guess I made. Well its good that you found some old keys shall I say. Good luck bro.

 

Lol thanks I will try to get it done tomorrow... does any of you you have a picture of a correct lb9 timing damper? Mine is really rusty and I don't know how to get 6 degrees.

 

i think the LB9 and L98 are have the same timing tabs. Either way , I hope i remember, but Ill take a picture of mine tomorrow and ill post it up for ya.

 

Thanks bro! there are like 3 little points one big point and another little point but I dont know which one to get the mark on lol.

 

I made a crude little picture after looking at my other TPI engine... is 6* on top or bottom? I believe twisting the dizzy counterclockwise it should raise the line on and twisting clockwise lowers it. I am guessing it is the one on the bottom.


Sorry its so crude lol

 

Here is what I have mine at with the EST wire disconnected.

 

Dude...your awesome thanks man

 

Yessir. Glad I can help you out bro.

 

Hey I need some help with the runner bolts....I can only find 4.
Here are pics of the ones I found. This is the passenger side btw.
This is the one in front accessed from the manifold area.


This is the one on the front passenger side


This is the one in the middle of the runner


And this one is in the back of the engine towards the dizzy.




I am really stumped on this one
Need some info ASAP because I dont want to forget where everything goes lol.

 

https://www.thirdgen.org/injectorswap

i really hope this helps.

 

It's been about 6 months since I replaced my injectors. There are 2 bolts that are on the underside of the plenum. You'll need an extention to reach the one infont inside of the plenum and the backside.

 

Now I am having a problem with the feed and return lines....damn PO stripped them to hell and now I cant get them off for the life of me.... too small an area to get vice grips in too... got the runners off though.

 

UUUMMMM,,,, I dont know what to say on that one bro.

 

Lol I will get it off one way or the other...even if I have to just snip it off buy a new line and get it off on the bench.