Warning Signs Of A Bad Fuel Injector

Changed distributor, coil, plugs, wires, map and wires, complete tbi that came with all new parts, injector wires, temp sensor, egr, fuel pump w/ relay. And check the fuel pump sock. TBI just keeps going. Tps looks good, no dead spots, reads wide open. When everything is working, there is usually quite a sizeable flow out of that hose. Location: BA, Argentina. However, the direct injection does come at a higher cost due to costlier parts and higher fuel consumption.

Tbi Spraying Too Much Fuel Systems

Also see if your parts store has a tool loaner program. Since you've changed the distributor you can't just check and see if the base timing has changed to check the timing chain but you can grab the balancer and see how far you can rotate the crank before you feel resistance from the cam. Either one of these can cause too much fuel to enter the intake, thus affecting the idle. Its a very real possiblity to hit -40 F here, and it has in the past while driving the 89. I'm pretty sure I used a pump for a '98 350 Vortec pickup in my TBI application. TBI he also has the protec ign.... 1992 ski nautique. The rubber fuel lines external to the tank seem to be ok. TBI Sprays Too Much Gas: Instead of a Cone of Mist, I Get Niagra. Last edited by margie's71; 11-13-2005 at 08:03 AM. So key on, not cranking it is spraying? I also noticed that I forgot to lubricate my larger o-rings. The whole idea of electronics is the components will change their internal resistance to give the desired output (very simplified).

Tbi Spraying Too Much Fuel Per

Posts: 1519 From: Zimmerman, Mn Registered: Dec 2010. The ECM applies a voltage and the ICM has an electronic relay that switches the ignition source. While this service will improve the function of your injectors, designed to remove small deposits of carbon, it won't be able to correct a failed injector. Ok. disconnected the est disributor harness and light went goes to pin b on ignition module. I also noticed rpm would slightly go down then pick back up to a good idle. Right bad injector to left housing and left good injector to right housing. A failed fuel pressure regulator will not always exhibit this symptom, but it's pretty easy to check for when doing your diagnosis. Tbi spraying too much fuel per. All vacuum hoses vac checked for leaks, none found. Any details on how you modified to add an external adjustable regulator? I do know that my oil pressure sender is little screw on the top goes in and out and the nut won't move... Shouldn't that be open? Check all the wiring connections, grounds etc first. I can't remember the last time I encountered a "weak" pump on a GM tbi unit. So yeah the ICM should show a resistance between the Tan/Black and ground since the electronic relay is across them.

Tbi Spraying Too Much Fuel Injectors

I did perform the sanity check of pouring a bit of gasoline down the throttle body and the truck ran for a few seconds. This time right housing stayed dry but left leaked. Outwardly the evidence is a black sooty tailpipe as well as slightly sooty plugs. Injector overflowing with fuel, recently cleaned tbi system and. Would a low voltage at the pump cause low pressure, or is it unlikely? "I'm planning to bring my girl that rides on a trailer with me and leave my girl that complains about camping at home". The carb may be coming next season! Throttle body flooding out continuously flow of gas could. Hmm- I think I have a bad injector I noticed this when I moved them to their opposite housings. Changed the gettin too much fuel for some reason?... The pump isn't too hard of a job, with the filter off, turn on the key and let the pump drain out the tank so you aren't wrestling with 100lbs of gas.

Tbi Spraying Too Much Fuel Treatment

If the CTS reports it to be like 0 - 20 degrees, she'll run full enrichment, and not lean out later on, cause it'd think its still cold, and choke the engine. It is a pain to get a fuel pressure gauge between the fuel filter and the TBI. I'll cover this more in the article on engine performance. Then get a meter (a light isn't good enough) and measure the voltage on pins 10, and 15 of C2 (Orange wires) to BODY ground with the key on, and especialy look at the voltage during the time the fuel pump relay should be on. In reply to SkinnyG (Forum Supporter): That's a good idea. Tbi spraying too much fuel treatment. The rubber hose inside the fuel tank had ruptured. Removal of carbon deposits from the throttle body. My seat of the pants guess is you have a power problem on the Orange wires. An electric balance test for an electronic failure may be possible with the use of a scan tool. The TBI changes how much fuel it puts in the mixture based on how cold it is. Technically it shouldn't be more than a couple of degrees.

Tbi Spraying Too Much Fuel System

Okay some how relay grounding out. A leaking injector often causes a misfire on the cylinder it's leaking into. The heavy deposits from poor fuel grades and lack of maintenance are considered an injector failure, which will require replacement. Clean carbon from valves to prevent sticking and ensuring a proper seal. Tbi spraying too much fuel systems. If that is the case there is no need to advance to #2. Replace them both, unless the "sock" has collapsed inside the tank or you have another flo restriction somewhere you really shouldn't see that much pressure variation key on engine off, under idle or WOT. 26 year old vehicle and ethanol fuel. Instead of a cone of mist, I get niagra falls spraying into my engine. What could be the problem? My car has 198000 miles.
I'm stumped, I have a lot of info from the diagnostic but don't have the experience to know what is right and what is wrong. Then replace the fuel filter, and check/ clean the in-tank sock. Use the wire grounds that are supposed to be connected to body ground. An easy check for a fuel pressure regulator is to just remove the vacuum line going to it. Well you need to double check the wiring then you have something off, the engine should shut down once the oil pressure is gone, yours is not that is why you are still seeing gas from the TB when it's no running. Is it coming from the injector nozzle or somewhere else on the throttle body? As long as we're on the topic of too much air, we should also discuss too much fuel. Location: Fort McMurray, Alberta. TBI works best with the correct pressure - too high or too low, and it all goes drunk. 1 - Not enough voltage to keep the fuel pump relay working.
Mon, 29 Jul 2024 01:59:33 +0000