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Post History: ajax-1947
4 years ago
Everyone has their own experiences, I found when my secondaries were not fully closing, the revs wer …In: holden 6 , 400hp fitech , idle speed starts high then drops
5 years ago
As I suggested, lower your Crank IAC. Unbalanced butterflies can also cause a problem, seems to be o …In: holden 6 , 400hp fitech , idle speed starts high then drops
5 years ago
I am no expert, I think you go to Go EFI Tuning - crank and warm up - crank IAC Mult - adjust the IA …In: holden 6 , 400hp fitech , idle speed starts high then drops
5 years ago
I am not into electronics, stand correction, but I understand the pressurised fuel from the pump ent …In: Intermittent Prime shot issues
5 years ago
Are you getting prime shot of fuel when you key on and pressure builds up? Also need to check batter …In: No fuel delivery on startup
5 years ago
I had a backfire early on, blew the TB base gasket, so small had to do smoke test to find it, mucked …In: Engine stalls when in drive
5 years ago
With my answer above, it is a thick red that goes to battery, it depends on what system you have, a …In: Wiring does not match the diagrams
5 years ago
I am away from home, when I wired mine some time back there was something amiss with the drawing tha …In: Wiring does not match the diagrams
5 years ago
Voltage a bit low, can cause problems, check at battery with a voltmeter, should be about 13.5 fully …In: Newbie with questions
5 years ago
Running same unit with external pump (44) and no problems at all, thimble vibration mounts to stop m …In: runs fine untill i hit the hiway. settings or setup?
5 years ago
If you also have a hesitation when accelerating, in DFCO return fuel add more fuel, if only when co …In: Engine dies when coasting to a stop.
5 years ago
Sorry, getting past my knowledge, could just be blocked injectors or electronic problem, I would rem …In: Could I have a bad fuel pressure regulator?
5 years ago
Have someone turn the key while you check if you are getting a prime shot from the injectors.In: Could I have a bad fuel pressure regulator?
5 years ago
If you have correct spark, fuel and compression, it should fire, regardless of what is bolted onto t …In: Crank and start settings help.
5 years ago
What is the vacuum reading on the gauge on the manifold? Did you do a smoke test on the vacuum side …In: drop in vacuum
5 years ago
If it spikes lean when you back off while cruising then runs rich, most likely you have an exhaust l …In: Going rich when coasting.
5 years ago
With me, running extremely rich at idle was a small vacuum leak, O2 sensor picked up unburned oxygen …In: Bad temp reading. Running rich. 1990 Dodge B250 5.9L
5 years ago
5 years ago
It is strange how things work different in various situations. When I was a young fellow [many years …In: Bad temp reading. Running rich. 1990 Dodge B250 5.9L
5 years ago
Voltage drop definitely causes problems. However, after following the threads on here about the prob …In: Fires then shuts off
5 years ago
Excellent. You will probably have to fiddle for a bit to get it ideal. Go for a good drive before yo …In: No initial start.
5 years ago
Could well be leak in exhaust [been there] at o2 sensor or directly after it, I picked it up by watc …In: FI-Tech Running Way Way Too Rich / 302 Ford Mustang
5 years ago
Could be a number of things, I developed a small vacuum leak on a base adaptor and was running super …In: FI-Tech Running Way Way Too Rich / 302 Ford Mustang
5 years ago
Hi Plumbpiper,
You are but a young fellow. But serious, whether with a carby or wet efi throttle …In: No initial start.
5 years ago
I agree to this logic up to a point, but what about the principle of hot water rising and creating c …In: cooling fans stay on key off,
5 years ago
I would test battery with a high rate discharge tester, Ultima might be good but are not infallible.In: 12-13 volts in the LCD
5 years ago
I guess I would look at the basics. Is it a new build, do I have spark, do I have fuel, the folks h …In: can get Fitech to start
6 years ago
I doubt that it matters, the connector is to aid installation, I would follow the hints in the link …In: help with force fuel setup
6 years ago
With a carby yes, but with the efi throttle body, with the extra air from the vacuum leak the O2 sen …In: Throttle body CFM VS engine Cubic inches?
6 years ago
A huge vacuum leak would have the engine running extremely rich which would be evident by the appear …In: Throttle body CFM VS engine Cubic inches?
6 years ago
I think that is normal, it removes any air and primes the engine, it is adjustable (think accelerato …In: help with force fuel setup
6 years ago
With regards to cfm size, I'm led to believe that because a carby relies on venturi speed to op …In: Throttle body CFM VS engine Cubic inches?
6 years ago
Great work - you have too much time on your hands!!! What sealant are you using for the wiring nut?In: 69 C10 with in-cab tank
6 years ago
Colours of wires possibly mean nothing. Suggest you get an experienced mobile auto electrician to tr …In: Newbie Alert - Coil/Inj D Fuse always blows when key turned to accessory
6 years ago
Replacement Parts
Coolant Temp Sensor
AC Delco 213-928
Recommended replacement for supplied …In: Coolant Temp Sensor adjustment
6 years ago
If you have the fuel pump power supply coming directly from the Fitech [orange coloured from memory] …In: 308 pinging under hard thottle
6 years ago
electronic fuel injection is great concept, the instructions suck, they are sold to the bloke off th …In: 308 pinging under hard thottle
6 years ago
Perhaps, mine also runs at about 38psi, without a problem, I think back pressure of the return line …In: 308 pinging under hard thottle
6 years ago
Couple of screws gets the regulator off, I had an 'o' ring that must have been damaged dur …In: Could I have a bad fuel pressure regulator?
6 years ago
a. There is no accelerator pump. When you turn the key on there is a prime function, adjustable thro …In: Could I have a bad fuel pressure regulator?
6 years ago
I also have the problem of revs dropping to 300-400 when coming to a stop, sometimes stalling, seem …In: Potential solution for all those struggling with Hesitation, bog, Lean Tip in, hunting idle, stalling, stumble, IAC steps
6 years ago
I had to replace temp and O2 sensors, fuel pressure regulator had a damaged O ring so replaced whole …In: New to Forum and Fitech
6 years ago
Replacement Parts
Coolant Temp Sensor
AC Delco 213-928
Recommended replacement for supplied …In: New to Forum and Fitech
6 years ago
Any fault codes? White or blank screen can mean too low a voltage. Too low a voltage on cranking (ab …In: New Fitech Install: Periodic Shut Down at Idle
6 years ago
I cut a circle out of thin aluminium, hole in the middle, double sided tape around the edge, a short …In: Secondary Adjustment
6 years ago
Intake Air Temperature Sensor fault ?In: P0112 Error Code and Motor Stalls when I shift into Drive...
6 years ago
There are others on this forum who are more knowledgeable than me who should be able to help. I wou …In: Running fine, died at idle and is now so rich it won’t run
6 years ago