My car died on the freway and would not start, so I had it towed home. The next morning I started it, and it ran fine so I drove it to work. On the way home I floored it, and it died(would not start so I pushed it the rest of the way home.)

About a week ago, I noticed that it was running really rich. The check engine light came on and code 43 came up. It had a miss at higher rpms.

So far I changed the ignition control module, the coil, checked the fuel pressure(50 PSI?), changed the MAF, and changed the computer. The cap and rotor are new.

The car will start and idle roughly, but as soon as I give it any gas it dies. It will not rev up. What do you guys think the problem could be??? I have searched and searched but I can't find the problem. Thanks for any ideas.

 

Normally when you see a code 43 it doesn't cause any noticable problems and is just a wiring, timing, knock sensor, or esc module problem. I've never had an esc module go bad so I don't know the symptoms, but you may want to try replacing that since you've covered mostly everything else which could cause such a problem. If you're getting knock retard from bad wiring or ks it shouldn't make your car stall.

 

50 psi is alot of feul pressure.....


that with the vac line on or offf ?

 

With the vacume line disconnected it is 44 PSI. With it connected it is 50. Car idles and will not rev up. Someone help please!!!!

 

Have you had a look at the MAF? Nd you may have 50PSI of fuel preassure but you may not have the volume behind it. So the pump may be on its way out. I know GM specifys an amount that it should be pumping per minute. Its sinple all you need is a stop watch and a jar. I had a broken line in the tank and I had a problem similar to yours. Just a few thoughts

 

How do I do the fuel pump test? 15 seconds is a litre?? 50psi with the vac and 43 without the vac.


If I floor it it when I first start my car it will rev up to 3500 and then just die..

Must move the car by tomorow need help asap..

 

Ill get the info for the pum tommorow for you. But im thinking your having a sensor problem since it is actually running. Sounds kind of like a MAF.

 

It was a bad injector.