03 V6 that pings at minimal acceleration (Tacoma)

hdegraaf · #1 (**permalink**) 02-23-2005, 05:39 PM

I just picked up an 03 SR5 TRD double cab with a supercharged V6. I have a slight ping at slow acceleration - like going with the flow of traffic - like I really do that often! I tried higher octane and also octane additive. Both help slightly, but only slightly. mediam to high acceleration don't ping at all.

Also, I get a check engine light that comes up as a lean condition. After clearing it the error comes back again after ~100 miles.

Is there a product to re-map the computer? Other that a piggy back unit?

OK enough questions for one thread.

Henk

TRD SyRuP · #2 (**permalink**) 02-23-2005, 05:41 PM

does it have the 7th injector?

hdegraaf · #3 (**permalink**) 02-23-2005, 05:47 PM

nope, but I have been thinking about it, but the $$ are preventitive unless it is the only way.

Henk

TRD SyRuP · #4 (**permalink**) 02-23-2005, 05:51 PM

ive got friends who had that same problem..and they installed the 7th injector and its fixed..performs better too..

hdegraaf · #5 (**permalink**) 02-23-2005, 05:56 PM

Thanks, I was headed that direction. the best price I have found is from http://www.trdsource.com - cost $1100.

In that case, any ideas on how to get the purchase passed the wife???

Henk

TRD SyRuP · #6 (**permalink**) 02-23-2005, 05:59 PM

tell her it will make your truck safer so she wont lose her man

Jim Swantko · #7 (**permalink**) 02-23-2005, 06:02 PM

It will keep your engine healthy too - pinging is very destructive to an engine - even Toyota's.

Honestly if it's an audible ping I think the 7th injector is mandatory - not optional.

Just my opinion.

hdegraaf · #8 (**permalink**) 02-23-2005, 06:04 PM

one problem, I have been using it as an excuse to accelerate harder - to prevent the ping and not hurt the engine

TRD SyRuP · #9 (**permalink**) 02-23-2005, 06:12 PM

check ebay..

TRD 7th injector search for that..i found 5 listings all from a toyota dealer at 1045$

bumpinbass · #10 (**permalink**) 02-23-2005, 11:16 PM

hey man check out this site

http://www.urdusa.com/Merchant2/merc...Store_Code=URD

Uunderdog Racing talk to gadget read around the site! Alot of guys that have the Supercharger and had the same problem u have got the URD fuel kit, it's like a tuneable 7th injector, better preformance than the 7th injector alone. Give em a try!

hdegraaf · #11 (**permalink**) 02-24-2005, 01:48 PM

Found another site. I have the stock FPU and found some things to try before doing the 7th injector.

www.gadgetonline.com/fuel.htm

one of the last sugestions he has is to redirect a hose on the FPU so that it reads intake manifold pressure instead of ambiant air pressure. I am going to try it this weekend and will post the results. It won't help the lean at hight RPM, but should help the pinging at low RPM that I am experiencing.

replacement FMU from Cartech can be had for under $200.00 that will be my next step before 7th injector since it will be needed anyways.

Henk