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Tach and vtec probs

 
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Old 06-26-2011, 12:30 PM
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Icon5 Tach and vtec probs

Hi guys my name is justin im new to preludes and H motors but I know a good bit so please no noob answere like im a stupid ricer guy.
I have a 92 prelude si with a jdm h22a swap not type s and its obd1 with a internal coil dizzy from a 94 accord sooo my probs are as followed: when I hit around 4000 rpms somtimes but verry rarly around 3 my tach bounces back and forth from like 4 to 8 but vtec still kicks fine BUT somtimes will act like a rev limiter at 6500 for a few secs then will pass and continue up,im running a p28 not shure if its chipped for anything but the o2 but I do know that I have no idea what it will rev to couse I have seen it shoot to 8 befor when tach worked good but I cant tell anymore coust the tach bounces so I dont take it high at all. The thing is that I have no clue what made it start acting up and I think its getting worse.
The second thing it that the speedo dont work somtimes(not the cause of the tach or vtec couse if the speedo isnt working I shift at 2500 always) it started only not working in the mornings when I got the car,it would stay at 0 and eventualy the cel would come on and after a while it would start working and the cel would go off but recently it hardly works and its realy agrivating.
Next is the fact that my car starts finn somtimes and other times it has to turn over a few times and starts up but not like a strong start but like it catches and slowly comes to an idle.
Ok INFO on the car itself: NEW spark plugs and wires,rotor,cap,fuel filter,bat,compression is 200-210,timeing is good,idel is fine and steady,new tps,cleaned egr and iacv any help would b nice and if I can think of anything els ill add and btw NO CEL
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Old 06-26-2011, 01:34 PM
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Re: Tach and vtec probs

Well a chipped p28 should physically connect and start the car but you need to make sure your tune on the chip matches with your application, example injector size etc...
Wish I could provide you with some extra info, but my guess is your ecu. Where did you get your p28 from?
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