| Author | Message | ||
| Augustine J. Staino (Azzuro328)
Junior Member Username: Azzuro328 Post Number: 60 Registered: 4-2003 |
I have also been advised to use Techron. I add a bottle to a nearly empty tank every other fill up and so far everything has been fine. | ||
| MarkM (Zan)
Junior Member Username: Zan Post Number: 59 Registered: 11-2002 |
Cleaned injectors over weekend, Tied into ends of fuel rails, very easy. Idle is smoother, still a slight roll to it, due for a belt job next year I'll diagnose it then. Big difference 2k to 3k, much smoother, can slow down and re-accelerate without downshifting. Didn't decarbon, out of stock, on order. | ||
| Verell Boaen (Verell)
Member Username: Verell Post Number: 837 Registered: 5-2001 |
Try adding a bottle of Techron to your gas when it's down to 1/2 to 1/3 full, then running it nearly empty. Unless your injectors are seriously in need of a cleaning, it will clean them out. If it doesn't change the roughness, then either you really do need a serious injector cleaning, or else you've got an entirely different problem to diagnose. BTW, A local mechanic suggested my son to pull his Rx7 injectors & soak them overnight, or longer in full strength Techron. Then thoroughly blow them out with air while putting 12V power on them (They were high impedence injectors). Worked like a champ. The mechanic claimed that if this didn't take care of them, then it was time to send them out to be rebuilt. All I can testify to is that whenver my 308 starts running rough, a bottle of Techron and an italian tuneup has taken care of it. | ||
| JRV (Jrvall)
Intermediate Member Username: Jrvall Post Number: 1700 Registered: 11-2002 |
We clean the fuel systems when neccesary such as situations like you describe. Although we diagnois the system with a gas analyzer first such as this '97' FI, then clean and de-carbon if test results warrant:  | ||
| Mitch Alsup (Mitch_alsup)
Member Username: Mitch_alsup Post Number: 740 Registered: 4-2002 |
"rough idle" Have the throttles been synchronized (with a set of manometers)? | ||
| MarkM (Zan)
Junior Member Username: Zan Post Number: 55 Registered: 11-2002 |
I'm thinking of cleaning my 355 injectors with OTC "Inject-R Kleen", pressurized throught the system, then using "D-Karbonizer" throuh the intake sytem. Has any one used this with a 355?, Anything I should know?, 30K miles, rough idle, thought it might be time to clean. |