Hi everyone,not been on here for at least 9 years,when i sold my 89 GTA to buy a 80 Trans Am S/E which i still have.Just bought a 91 Trans Am 305 two weeks ago.Starting to wish i hadn't bought it now as it broke down yesterday.

I used it for a couple of days after i bought it and noticed it developed a slight misfire when it got warm.Brushed it off as probably needing plugs etc as not been used much.But then didn't get round to doing anything with it as didn't have time and didn't use it again until last thursday,it was running great then with no misfires,up until yeterday when it just died as i was driving.Got it to start ok but wouldn't rev,will idle but that's it.Had to tow it home.
Went out this morning,it fired straight up,drove about 100 yds,floored it and it pulled great then just died again,managed to turn it around and get it home with engine at idle,won't rev without dying.
Checked ohms on injectors,number 1 had 9.8,number 7 had 4.9 and all the other 6 had 16.7.After running it again i checked number 1 again and it had 11 ohms.Could those two injectors cause it to not be able to rev up?
Fuel pressure was around 38-40.
I did the codes but not sure how to read them.It does the first stage for 12,then pauses then does two quick flashes 3 times.

Heres a short vid.

http://vid694.photobucket.com/albums...pskylrtayi.mp4

Plug on left is number 1 cylinder,right is number 3.

 

sorry man your injectors need to be given a proper buriel!

 

Ok thanks for the quick reply.Just been looking on your website,what's the difference between the ones at $145 and the D3 at $155.Also do the D3 come with the adapters or do i need to buy them seperately.
Thanks Jimmy.

 

Check all the wiring going to your fuel pump and make sure its tight. also check that the fuel pump relay is seated properly. Sounds like a intermittent fuel pump issue.

 

Both are bosch injectors and both have a 4 spray pattern. The injectors for $145 are the bosch gen ll..it's a fine injector. The bosch lll is more efficient with better atomization. The adapters are included in the price....plug and play

 

Ok thanks,just ordered a set of the 3's,chose Worldwide Expedited shipping hoping i get them and get them fitted before 17th of this month so i can go to a car show with it.

 

Thanks,i will check those,got a new filter on it's way so when i fit that i will check the other stuff.
Is 38-40 psi about right for fuel pressure ?

 

Yes your fuel pressure is sufficient, however if you have a loose wire or relay it may cause it to "cut out" causing you to momentarily lose fuel pressure.

 

they shipped today. Looks like you will have them by Thursday!

 

Thanks

 

Cool

 

Injectors came wednesday,put them in yesterday but didn't have time to finish until today.Changed plugs,cap and rotor and runs much better.Moves like a scalded cat.Slightly lumpy at idle but i have a pipe off which i now know where it goes.
Not checked codes which i will do as i also had code 22,TPS,not changed that yet.

 

Although the car runs fine,i had noticed a ticking noise,thought it was a valve.After listening closer it sounds like either a injector or fuel rail.So i checked fuel pressure and i now only have 5 psi.

 

Engine won't run with 5 psi, double check the gauge. Note that the Bosch injectors are louder then the stock Multecs.

RBob.

 

Yep the Bosch injector tick tool me a minute to figure out too. Thought I had a lifter issue or something. They are LOUD and all 8 fire at the same time amplifying the noise.

GD

 

Thanks for the replies guys.I did think it was odd that it ran well with pressure that low.Guess i need to check my gauge.

 

unfortunately the the bosch lll's are notoriorous for the ticking sound. However it has absolutely nothing to do with the performance or functioning of the injectors

 

The ticking doesn't bother me,don't hear it when i am driving,only hear it when hood is up.Car runs really well so i am happy