ok I have been fighting this for the last 3 months now... slowly eliminating all things that could be the issue.
This all started when I drove through a rather large puddle (not hydrolock large just a big splash) and sent a mist of water into the intake, I disconnected the intake after and saw that a mist of water was sent in.
The problem:
Under partial or even full throttle leaving a stop light in 1st gear its all good then about 75ft after starting to roll I will feel a massive drop in power accompanied with a POP POP POP out the exhaust almost like shitloads of fuel are going into the exhaust. it clears itself up when I lift and then re-apply the throttle. it only happens when its withing 10 minutes of starting the engine no matter if its cold or hot. On cold starts I get a pretty good deal of surging if I get on it when the engine is still cold. On a cold start the idle is a lil loopy but not bad.
I also since then have gotten much more popping off throttle.
I did a few things that helped reduce it but not eliminate it:
Replaced the forward O2 (36K miles)
Replaced the TPS (36K miles)
Replaced the Fuel Filter (36K miles)
Replaced Plugs (Iridiums) (36K miles)
New-er plug wires (9mm Ford Racing) installed about 5 months ago.
Datalogged and sent it to Wayne who sent me a new tune that somewhat reduced it... you could tell it was a bit different at idle as the old tune ran much more rich at idle than this one (the nose AFR meter
)
I cleaned the MAF with electric motor cleaner and it looked intact.
I removed the AEM CAI and put in the stock SVT airbox w/ new K&N filter.
I am about to go and attack the IAC but dont want to unless I need to ... I dont see why the IAC sould affect on throttle action.
You think its still a bad tune? or possibly something else wrong. The car eats no oil, on highway trips I still get 35Mpg, the plugs are clean, it throws no codes, HELP!
This all started when I drove through a rather large puddle (not hydrolock large just a big splash) and sent a mist of water into the intake, I disconnected the intake after and saw that a mist of water was sent in.
The problem:
Under partial or even full throttle leaving a stop light in 1st gear its all good then about 75ft after starting to roll I will feel a massive drop in power accompanied with a POP POP POP out the exhaust almost like shitloads of fuel are going into the exhaust. it clears itself up when I lift and then re-apply the throttle. it only happens when its withing 10 minutes of starting the engine no matter if its cold or hot. On cold starts I get a pretty good deal of surging if I get on it when the engine is still cold. On a cold start the idle is a lil loopy but not bad.
I also since then have gotten much more popping off throttle.
I did a few things that helped reduce it but not eliminate it:
Replaced the forward O2 (36K miles)
Replaced the TPS (36K miles)
Replaced the Fuel Filter (36K miles)
Replaced Plugs (Iridiums) (36K miles)
New-er plug wires (9mm Ford Racing) installed about 5 months ago.
Datalogged and sent it to Wayne who sent me a new tune that somewhat reduced it... you could tell it was a bit different at idle as the old tune ran much more rich at idle than this one (the nose AFR meter
)I cleaned the MAF with electric motor cleaner and it looked intact.
I removed the AEM CAI and put in the stock SVT airbox w/ new K&N filter.
I am about to go and attack the IAC but dont want to unless I need to ... I dont see why the IAC sould affect on throttle action.
You think its still a bad tune? or possibly something else wrong. The car eats no oil, on highway trips I still get 35Mpg, the plugs are clean, it throws no codes, HELP!
