Help

[cml61386]

I've searched around some got some idea's as to why my car will not start. Over the weekend I put in 550 injectors and a lex maf, I have a BIC DDP with a full 3 inch exhaust, WB O2. Turn the car over spit and spudder but wouldn't fire right up. A few times it would start but it wasn't running on all 6 cylinders, I gave it a little bit of gas and had it running at 2500 rpm but let off and it would die immedatietly. Will these cars run with a bad AFM or just flat out won't run? I'm wondering seeing i had the TB off that I may have screwed up the wiring harness for the TPS, do these problems sound like that could possibly be a cause? The lower seals on the fuel injectors being broken cause sumtin like this? Cause I found I had three that pretty much fell apart after moving the fuel rail around some. Already ordered new ones from Toyota.

 

[Aspec]

First, "these cars" have an AFM(air flow meter). Big difference. Did the Lexus AFM come with the electronics in it or did you use your old components?

I may have screwed up the wiring harness for the TPS.

That could do it.

The lower seals on the fuel injectors being broken cause sumtin like this? Cause I found I had three that pretty much fell apart after moving the fuel rail around some.

That could do it. If the injectors are loose enough to cause a major vacuum leak.


Also, pull your diagnostic codes before posting a question regarding "Diagnosing" a problem and it will save the rest of us from asking for them.

http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx



_

 

[bountykilla0118]

Umm start with the basics fuel and spark .....1) fuel pressure 2) are coils sending spark to all plugs just start the car and pull 1 plug at a time and see if you are getting a strong spark

I had a coil die on me just the other day and i had the same problems you are having. I figured it out quick just start with the easiest to reach thing in the fuel and ignition systems

 

[Aspec]

Umm start with the basics fuel and spark .....1) fuel pressure 2) are coils sending spark to all plugs just start the car and pull 1 plug at a time and see if you are getting a strong spark

I had a coil die on me just the other day and i had the same problems you are having. I figured it out quick just start with the easiest to reach thing in the fuel and ignition systems

:biglaugh:

He added a lex afm and 550's. He is possibly missing injector seals and claims to have bugger'd the tps harness. We're past the basics. :icon_bigg

 

[Kckazdude]

I've searched around some got some idea's as to why my car will not start. Over the weekend I put in 550 injectors and a lex maf, I have a BIC DDP with a full 3 inch exhaust, WB O2. Turn the car over spit and spudder but wouldn't fire right up. A few times it would start but it wasn't running on all 6 cylinders, I gave it a little bit of gas and had it running at 2500 rpm but let off and it would die immedatietly. Will these cars run with a bad MAF or just flat out won't run? I'm wondering seeing i had the TB off that I may have screwed up the wiring harness for the TPS, do these problems sound like that could possibly be a cause? The lower seals on the fuel injectors being broken cause sumtin like this? Cause I found I had three that pretty much fell apart after moving the fuel railaround some. Already ordered new ones from Toyota.

Seriously, why would you try to run a car with known bad injector seals?

 

[cml61386]

Ok sorry on the wrong terms but they both do the same but yes it came with the electronics. I didn't mess up the tps but I just said it to see if that could cause the problem. I got new seals coming for the injectors. And as far as codes wasn't concerned with those yet just wanted to know where and what could possibly cause this without alot of digging, brainstorming more than anything else at the moment. Bounty I'm pretty confident the basics are there or it probably wouldn't have ran for a few seconds.

 

[cml61386]

Didn't realize they where junk till after the fact but yes stupid none the less

 

[bountykilla0118]

ok .... boss

 

[jdub]

And as far as codes wasn't concerned with those yet just wanted to know where and what could possibly cause this without alot of digging, brainstorming more than anything else at the moment.

Ummm...diagnostic codes have a MAJOR impact on how the 7M runs. And, can point you directly at the problem source.

I suggest you pull them...and, check the basics vs "assuming".

Case in point:
http://www.supramania.com/forums/showthread.php?t=72468

 

[89TargaT]

Ummm...diagnostic codes have a MAJOR impact on how the 7M runs. And, can point you directly at the problem source.

I suggest you pull them...and, check the basics vs "assuming".

Case in point:
http://www.supramania.com/forums/showthread.php?t=72468

Damn right. 'Bout beat my head into the wall trying to figure out my simple problem. I read the codes, but kept getting sidetracked with other shit I thought was relevant instead of what the TSRM and others told me. Best place to start unless the problem is something right in front of your face that you can see.

 

[cml61386]

Alright I see where this is going to end up so I best get the codes and double check the basic's as far as fuel and spark go. Just to rule out my own assumuptions. Also I would imagine everyone who has comment has far more knowledge and experience trouble shooting these cars than I do. Once I'm able to work on my car this weekend and find out what i can I'll post up my findings and go from there.

 

[cml61386]

Damn right. 'Bout beat my head into the wall trying to figure out my simple problem. I read the codes, but kept getting sidetracked with other shit I thought was relevant instead of what the TSRM and others told me. Best place to start unless the problem is something right in front of your face that you can see.

I was actually reading your thread before i posted mine to see what information you came across and what the problem was.

 

[bountykilla0118]

I figured he wasnt throwing any codes but you can still have codes present without the C.E.L. on..... With a little common sense he would of thought to figure out why the check engine light is on


Common sense isn't so common.

 

[89TargaT]

I kept getting a code 14 and 51. I just traced through all the easily accessible components in the ignition circuit as per the TSRM.

 

[Kckazdude]

Common sense tells me not to start th car again until I had injector seals. Worst case scenario is leaking fuel and burning the car down. Best case scenario is running lean enough to melt a piston. Either way it isnt good and needs to be fixed before going further. May actually fix the problem.

 

[bountykilla0118]

the injector seal issues he is have is mind boggling ...... must not be current with all the car fires lately

 

[cml61386]

the injector seal issues he is have is mind boggling ...... must not be current with all the car fires lately

Nope I haven't heard of any car fires lately.

 

[cml61386]

Replaced the injector seals cost me like 13 bucks for 6. Had a few problems with the injectors sealing properly in the fuel rail but once I had no more fuel leaking. The car fired right up with no problems. Until I was coming home late at night and got on it hard and blew off an intercooler pipe and the car died and I had to tow it home. But it was alot of fun till that happened. Lol