Is It Safe To Use Those Injector Cleaning Products?

[snappy_]

As above.

My car seems to be getting harder and harder each time i start my car in mornings. And also as soon i as the engine starts to run, it dies out, revs wont stay up.

Fuel economy seems pretty bad also.

And most times when i warm up my car, until the temp gauge needle starts to move, i go to accelerate and the cars seems to bog down.

So is it safe to use the fuel cleaning bottle for the meantime until i can get enough funds for new cleaned injectors?

tom

[Rekin]

r32's have a common problem with cold starts. Majority of us just blip the throttle as we start the car to stop it from stalling (i do)

r32's also feel like their lagging/bogging down during cold run's because they are running a rich fuel map to warm the engine up quickly. Hence why the car feels like its hesitating in the morning. Once the car warms up to operating temperature the laggyness/hesitation goes away.

I have used Nulon Fuel injector cleaner which did not cause any problems with my car.

Hope that helps

[Simmo1985]

When was the last time you changed your fuel filter? Has the O2 sensor been replaced since you've owned the car? Might be worth looking into.

[snappy_]

r32's have a common problem with cold starts. Majority of us just blip the throttle as we start the car to stop it from stalling (i do)

r32's also feel like their lagging/bogging down during cold run's because they are running a rich fuel map to warm the engine up quickly. Hence why the car feels like its hesitating in the morning. Once the car warms up to operating temperature the laggyness/hesitation goes away.

I have used Nulon Fuel injector cleaner which did not cause any problems with my car.

Hope that helps

Hey Patrick,

Did the nulon bottle help in any way?

-tom

[snappy_]

Yeah i haven't changed the fuel filter yet. But I'm going to try the fuel cleaner thing first to see if it will improve anything.

[Modena]

1. change fuel filter

2. change o2 sensor (reset ECU after)

3. use a full bottle of Nulon injector cleaner

Gluck

[scarface]

what do u do if i change o2 sensor and u have a power fc, do u reseet it or retune it

[mad032]

i had a simalar problem that turned out to be the cold start bypass valve. When your car is cold it opens and lets air bypass the tb therefore gives the engine slight revs to stop from stalling. It also is what kicks the revs up when you turn your aircon on so that maybe one way to test it!

[snappy_]

i had a simalar problem that turned out to be the cold start bypass valve. When your car is cold it opens and lets air bypass the tb therefore gives the engine slight revs to stop from stalling. It also is what kicks the revs up when you turn your aircon on so that maybe one way to test it!

Where is the cold start bypass valve?

[Dose Pipe Sutututu]

that bypass valve your refering to is under the top half of the plenum, this units usually seize up and stop functioning after sometime either causing your car to idle extremely high or cause your car not to idle properly when its cold.

Usually taking out the AAC Valve and cleaning it with carby cleaner will do the trick, most mechanics just block this up and charge you like $100 to fix your high idle problems (fags).

[mad032]

^^^ No im not refering to the aac valve.

As i said the cold start bypass valve which is located next to the intake cam cover just ontop of your fuel rail nearest to the firewall.

It has a hose running to it from before the throttle body on one side and another from the intake manifold and has a small plug on it also.

My setup is all custom but from memory this is correct.

As said above it also wouldnt hurt to pull your aac valve off and give it a clean out there is a thread in diy which will help alot.