hey guys iv got a 4age 20v silvertop, she has been running sweet for the past few years last night it just didnt start its cranking but not turning over. so far iv checked

- coilpacks are working

- sparks are working

- fuel is been fed through (checked the in line) plus all new pumps (2months old)

- battery is fine even tried jumping it

- checked all fuses all seem fine

(running a razorback ecu)

 

this is the first time that this has happend :( totes randy.

 

i have a feeling the injectors are blocked :/ but iv sprayed the cleaner through the ITB's (trumpets) ....

it randomly happened after i drove the car out to have dinner, on the way home she just didnt want to start :(

My bigport 16V did this, was a blown ECU. EVERYTHING seemed fine, fuses, relays, spark, fuel, timing, injectors etc but one resistor inside the ECU had gone. I'd also check your fusible links if they are the old wire type. Sometimes they can be blown and not look blown. My ECU blew because I had forgotten to replace the 80A link when I blew it, which blew the resistor controlling the EFI.

Edited January 6, 201313 yr by B.L.Z.BUB

yeh when i was running it with a standard 4age ecu the capacitors ʞ©$ɟed up. is there any way to check to see if the resistors are gone ? but i checked the fuel in lines etc it seems to be feeding it through, is there anyway to check the injectors ? i read a few threads, some say open the fuel rail to see if the injectors are spraying...

also could it be starter motor issue ? I'm not sure if it would coz it cranks and started once but died :(

Yeah mine would crank and pop and fart occasionally. Sounds exactly like my issue. I'd def check your main fusible links.

If it still turns over like it used to, you can rule out the starter motor.

 

Did you hit a bump or anything? Shit can come loose with stiff springs.

 

20v's run ignitors right? Make sure that is connected and earth properly I had that issue in mine once.

just opened up the ecu, no leaks or anything.... just tried to start, it started then died instantly... i have a feeling its something to do with injectors...

and yeh i do have stiff springs and possibly went over bumps, but it ran smooth and then i picked up my dinner got in the car... and she died :'(

update, changed fuel reg. got the injectors cleaned... its a fuel issue coz when i spray start the bastard it starts ...

what about rotor button? my 4k was doing the same thing. the little locator was broken so the shaft was spinning but the button was not

it has to be a fuel issue coz iv changes parks checked them and the coilpacks its all sparking, and when i use startyourbastard it starts... so it has to be fuel. the in line has fuel/pressure, the fuel is getting to the injectors but not squirting through .... :(

got the injectors cleaned

 

What did the tech say about them?? They should be spotlessly clean if the filter is good, they work in a clean environment in the inlet system, not like diesel injectors. I can imagine they would block up if shit came down the line. He would notice that.

 

Have you pulled the fuel rail connection off and measure the flow rate? Even just to see that it pours out everywhere.

CAR STARTS :D

 

they were dirty but I'm running 650cc injectors as my motor is modded pretty hard. they wer slightly dirty he said but not that bad, i did take the rail off and give it a real good clean i then played around with the fuel relay and it started. so it was either the relay or the rail that was the issue !

 

thanks for the help guys :D

FML :( it did it again, drove it for exactly a week or so started her up drove up the road to the shops today, got a drink, got back and she didnt start :( i pushed the lil slut home !!

anyone got any tips ?

Relay more likely than injectors. Poor contact somewhere in that system. Next time it doesn't start check for 12V in and out of the relay straight away.