I Need Help
I Need Help I had my Jet hot LT's installed a few weeks ago but havent driven the car much because of a small leak, here is my problem. I drove it around a little last night and when im at low speeds (10-15 miles an hours) i will hit the gas and my car just does nothing for 2-3 seconds. Its like im not even pushing the pedal then it revs and goes. Any ideas on this guys? all i have done is the LT's but here is a list of all my new parts. Opti less than 5000 miles, plugs wires new, fuel pump and filter new, coil and ICM new, ignition switch new. I didnt notice this happening untill after i put in the LT4 knock mod. but i dont think this would have anything to do with it. the car is a 94 a4 and the trans has been rebuilt as well, thanks for any help !
You said it started after you put the LT4 knock module. You could try swapping back to the LT1 knock module to see if anything changes. Did you use o2 extensions? Have you had your TB off recently? Troubleshooting sucks...good luck man.
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OK now i have a beef with some of the peoples advise with tunes on just header only cars, i replaced the TPS last night and then went out for a drive nothing changed. i noticed the temp was getting higher than normal so i put the 160 thermo back in and then pulled out my hypertech. yes i know its not all that great but i forgot i had uninstalled it before i took it to the shop. well installed it back on and got all my throttle response back and no More hesitation. so i going to say you do need a tune with just LT install
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Verdad Gallardo OK now i have a beef with some of the peoples advise with tunes on just header only cars, i replaced the TPS last night and then went out for a drive nothing changed. i noticed the temp was getting higher than normal so i put the 160 thermo back in and then pulled out my hypertech. yes i know its not all that great but i forgot i had uninstalled it before i took it to the shop. well installed it back on and got all my throttle response back and no More hesitation. so i going to say you do need a tune with just LT install
As for a tune, you could pick up 10rwhp from a tune on a bolt-on LT1.
the elbow was on right it was not leaking i had already checked that because it was an issue i had before. i changed the thermo back because of the temp going higher than normal, i put the 180 in during the very short winter we have here
imo 4 biggest problems that occur after lt swap
1) burnt plug wires
2) cracked ceramic in spark plug
3) bad o2 wiring from extensions
4) fouled o2's from coating burning off and getting on them
1) burnt plug wires
2) cracked ceramic in spark plug
3) bad o2 wiring from extensions
4) fouled o2's from coating burning off and getting on them
i changed plugs and wires during install and i got the headers used so the coating was already burnt off
Besides that, I wouldn't mess with that Hypertech and I'd get a real tune.
im going to be getting my LE package ordered soon and then will get a real tune, for now the hypertech can keep me on the road. i bought tuner cats tune a while back but when i went to use it i got scared lol