hi there,
i drive a gmc c1500 1989
i did a half year ago a 305-350(modified)swap.
the engine give me lots of problems and i don't know what to do anymore.
Can you guys help me?
i lives in Holland(europe)and tbichips.com helps me a lot but i've got 5 chips and the engine stumbles and runs likes crap
we get it everytime a little better but it takes lots of time.
if you want specs from the engine or other infoplease ask.
the engine now feels like it has only 100hp
3000rpms and up the engine runs a liitle but from idle to 3000rps it stumbles bad and so on
i attach some pictures from winaldl and hope you can see what's wrong?
also for the 1st time i get aan code 33.







thanks Tom

 

no one?

 

TBICHIPS needs to fix your problem since he took your money. If he can't do as advertised then I'd ask for my money back.

I doubt anyone here wants to provide tech support for TBICHIPS while he collects the money.

Now, on the other hand, if you get the equipment and software to burn your own PROMs then you will find help on the DIY PROM forum next door. This is really the only way to get your tune right.

 

Ding ding ding we have a winner!
Couldn't agree more. I'm feel bad that you're engine is running poorly but most if not all of us here feel that tbichips.com is a rip. We've warned people COUNTLESS times about mail order chips. For the cost of shipping and his initial cost for a chip you could have had your own hardware and been closer than he'll ever get. To put it bluntly; you got screwed....
Now for the nice side of me; You're screenshots show nothing wrong so it's hard to say exactly what could be wrong and if it's even in the chip. I'd look VERY hard at things like fuel pressure (fuel pump or filter bad?) and the rest of the mechanics. Just one shorted spark plug wire burned on a header can cause headaches. Another thing to check is the spark plugs. When a spark plug is dropped, Murphy's laws kick in and the electrode will most likely land first resulting in a near zero gap.... this happens all to often. Good luck and please get your money back and start with a stock chip that's similar to your car. The DIY board is here to help those that DIY, not those that pay others, that's what the rest of the boards are for.

 

Brent and Prevost said it so well, there's nothing left to say.