I just got my ECU back today with a Basemap for my setup, and tried to start my car i ran into problems.

Its an OBD1 GSR with a JRSC

I just instlaled a walbro fuel pump along with DSM blue top Injectors.

The car took a long time of cranking before it would turn over. When it finally did it didnt want to idle at all and died immediately. I started it again and gave it a little gas. When it revved, it would bog and sound like crap, but on the down-rev, it sounded normal. When it would come back to idle, it would die immediately. My CEL came on and code 16 was spit out (FUEL INJECTORS)

I didnt do the resistor box, but wired in radioshack 10 ohm 10 watt resistors to each of the yellow wires with the black stripe. There didnt seem to be any leaks in the seals of the injectors (atleast major ones)

THIS SUCKS, WHAT DO I DO!

I have a tune date in 5 days and I need these injectors to work.

How do i tell if they are clogged, defective, vs I installed them wrong.

Please help.

Thanks alot guys

Kyle

 

unless the map was scaled for the 450's it wont start, not to mention have you wired the resistor box properly?

 

The basemap was scaled for 450's on a stock GSR.

I didnt use a resistor box, but i wired in 4 inline resistors onto the yellow wires with the black stripe.

Thanks for the reply

Back to searching

 

Could i just be running super rich with the basemap? Would this cause me to throw 16?

 

Mine did that exact same thing when I wired up my 3bar before i chipped my ECU (yes im retarded). I have a chipped ECU now, DSM 450's w/ resistor box, and the 3 bar... I thought you had to have the resistor box with the DSM injectors??

 

From all the articles i have read, you may substitite (4) inline 10 watt 10 ohm resistors on the power wire to each injector instead of a resistor box.

I might buy some black tops and see if that helps my problems any.

Thanks for the reply

 

A resistor box or in line resistors will work with the DSM 450's

 

Oh, I never even thought about the resistors, thats a good idea.

 

check contunuity btwn the injector to the junction box incase you have a bad solder job

if one of the injectors/resistors have a bad solder it might cause a break and it might be only running on 3 injectors/cyclinders

re-read your post again and you didnt mention how they are wired
did you solder or butt connect ??
please tell me you didnt butt connect them

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackCRX &raquo;</TD></TR><TR><TD CLASS="quote">
did you solder or butt connect ??
please tell me you didnt butt connect them</TD></TR></TABLE>

No i soldered them. Where should i check for contunuity? Betweeen the resistors and the injectors?

 

i would check from the injector clip to the junction box

b/c if you check it to the resistor you wont have a complete curcuit ... **** its hard to explain

"X" marking solder points
if you check from the injector to the resistor you might be still checking the leg of the resistor and only checking one sodler point. the one from the injector to the resistor
but if you check from injector to junciton box you check both solder points from start to finish

does that make sense ??

injector -----X----- resisitor -----X------junction box

 

Thanks, Yeah that does make sense. I will check that tonight when i get home.

Im thinking about ditching the DSM's and buying RC's

 

why ditch the dsm ??
they work awesome and the price cant be beat

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackCRX &raquo;</TD></TR><TR><TD CLASS="quote">why ditch the dsm ??
they work awesome and the price cant be beat</TD></TR></TABLE>
because i cant get them to work right Im suposed to tune my car in 4 days so i dont have much time to troubleshoot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by debogsr &raquo;</TD></TR><TR><TD CLASS="quote">
because i cant get them to work right Im suposed to tune my car in 4 days so i dont have much time to troubleshoot. </TD></TR></TABLE>


4 days should be plenty of time to fix this.

first un plug each injector and turn the key to the on position. don;t try and start it.

next put a volt meter on the injectors plugs and make sure it has power. injectors run when the ground is connected so they should see power at all times when the car is in the on postion.

if the power is there on each plug, next test the no power lead to the harness plug near the firewall. it should have all of the yellow wires with black strips run into it. really close to your clutch slave cylinder. if you have 10 ohms of resistance there then check that plug with the ground.

if all of that checks out. then check your injects and make sure they all have the same resistance. you have a maximum of 4-5 places you could check for problems shouldn;t take more then 1hr to fix your problem

 

The OHM's read anywhere between 10.1-10.3 from the injector clip to just after the resistor. The car was turned off.

I dont see how i can test with the car in the on posistion because the fuel pump will prime, and since the fuel rail is off the car, fuel will spray everywehre.

Is it really necessary to test all the way up to the clip by the firewall?

Thanks for your reply

 

what kind of basemap do you have? and what was used to make it? I have made basemaps that didn't work before. that is most likely your problem

 

I was told from the shop that burned the basemap that it is the same one that is issued by jackson racing on thir boost upgrade setup.

Basically

450CC injectors
stock gsr
8psi
bigger fuel pump

The guy who will be tuning my car said it is a very good basemap and has never had problems with it before. Also, he said that he has never seen a (code 16) injector CEL before.


=0/

Thanks for the reply

 

it would probably be cheaper to try another set of dsm's then to get the one you have tested. if it's not the injectors, you can always sell a set to someone else.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ramennoodles &raquo;</TD></TR><TR><TD CLASS="quote">it would probably be cheaper to try another set of dsm's then to get the one you have tested. if it's not the injectors, you can always sell a set to someone else.</TD></TR></TABLE>

Yep thats the plan. Im lookin for any 440's RC's or DSM's sometime before tuesday

Thanks again everyone for help

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by debogsr &raquo;</TD></TR><TR><TD CLASS="quote">The OHM's read anywhere between 10.1-10.3 from the injector clip to just after the resistor. The car was turned off.

I dont see how i can test with the car in the on posistion because the fuel pump will prime, and since the fuel rail is off the car, fuel will spray everywehre.

Is it really necessary to test all the way up to the clip by the firewall?

Thanks for your reply</TD></TR></TABLE>

have you checked the resistance of each injector?

also it takes 5 mins to put the rail back on to check everything out, i would put it back together after you check each injectors resistance and go from there. check continuity from the firewall to the injectors and the resistance of the injectors, and then with everything put back the right way, make sure your getting power to the injectors.